Home / 28,572.76-39,428.22-15,995.80

Finding the Fourth Proportional to 28,572.76, 39,428.22 and 15,995.80

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Solution

The fourth proportional to 28,572.76, 39,428.22 and 15,995.80 is: 22,072.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,572.76 : 39,428.22 = 15,995.80 : x
  2. Step 2: Convert to fraction form
    28,572.76/39,428.22 = 15,995.80/x
  3. Step 3: Cross multiply
    28,572.76x = 39,428.22 × 15,995.80
  4. Step 4: Simplify right side
    28,572.76x = 630,685,921.48
  5. Step 5: Solve for x
    x = 630,685,921.48/28,572.76
  6. Step 6: Final answer
    x = 22,072.98

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Half scale
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Double scale
Find fourth proportional to 28,573.76, 39,429.60 and 15,996.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.