Home / 28,262.97-39,006.23-15,688.53

Finding the Fourth Proportional to 28,262.97, 39,006.23 and 15,688.53

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Solution

The fourth proportional to 28,262.97, 39,006.23 and 15,688.53 is: 21,652.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,262.97 : 39,006.23 = 15,688.53 : x
  2. Step 2: Convert to fraction form
    28,262.97/39,006.23 = 15,688.53/x
  3. Step 3: Cross multiply
    28,262.97x = 39,006.23 × 15,688.53
  4. Step 4: Simplify right side
    28,262.97x = 611,950,331.10
  5. Step 5: Solve for x
    x = 611,950,331.10/28,262.97
  6. Step 6: Final answer
    x = 21,652.02

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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.