Home / 28,900.13-43,350.19-8,123.63

Finding the Fourth Proportional to 28,900.13, 43,350.19 and 8,123.63

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Solution

The fourth proportional to 28,900.13, 43,350.19 and 8,123.63 is: 12,185.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,900.13 : 43,350.19 = 8,123.63 : x
  2. Step 2: Convert to fraction form
    28,900.13/43,350.19 = 8,123.63/x
  3. Step 3: Cross multiply
    28,900.13x = 43,350.19 × 8,123.63
  4. Step 4: Simplify right side
    28,900.13x = 352,160,666.93
  5. Step 5: Solve for x
    x = 352,160,666.93/28,900.13
  6. Step 6: Final answer
    x = 12,185.44

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.