Home / 28,574.32-39,428.76-15,998.80

Finding the Fourth Proportional to 28,574.32, 39,428.76 and 15,998.80

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Solution

The fourth proportional to 28,574.32, 39,428.76 and 15,998.80 is: 22,076.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,574.32 : 39,428.76 = 15,998.80 : x
  2. Step 2: Convert to fraction form
    28,574.32/39,428.76 = 15,998.80/x
  3. Step 3: Cross multiply
    28,574.32x = 39,428.76 × 15,998.80
  4. Step 4: Simplify right side
    28,574.32x = 630,812,845.49
  5. Step 5: Solve for x
    x = 630,812,845.49/28,574.32
  6. Step 6: Final answer
    x = 22,076.22

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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.