Home / 28,471.15-39,287.20-16,532.15

Finding the Fourth Proportional to 28,471.15, 39,287.20 and 16,532.15

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Solution

The fourth proportional to 28,471.15, 39,287.20 and 16,532.15 is: 22,812.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,471.15 : 39,287.20 = 16,532.15 : x
  2. Step 2: Convert to fraction form
    28,471.15/39,287.20 = 16,532.15/x
  3. Step 3: Cross multiply
    28,471.15x = 39,287.20 × 16,532.15
  4. Step 4: Simplify right side
    28,471.15x = 649,501,883.48
  5. Step 5: Solve for x
    x = 649,501,883.48/28,471.15
  6. Step 6: Final answer
    x = 22,812.63

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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.