Home / 28,825.87-39,781.53-16,251.43

Finding the Fourth Proportional to 28,825.87, 39,781.53 and 16,251.43

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Solution

The fourth proportional to 28,825.87, 39,781.53 and 16,251.43 is: 22,428.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,825.87 : 39,781.53 = 16,251.43 : x
  2. Step 2: Convert to fraction form
    28,825.87/39,781.53 = 16,251.43/x
  3. Step 3: Cross multiply
    28,825.87x = 39,781.53 × 16,251.43
  4. Step 4: Simplify right side
    28,825.87x = 646,506,750.09
  5. Step 5: Solve for x
    x = 646,506,750.09/28,825.87
  6. Step 6: Final answer
    x = 22,428.00

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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.