Home / 28,660.78-39,552.02-16,560.29

Finding the Fourth Proportional to 28,660.78, 39,552.02 and 16,560.29

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Solution

The fourth proportional to 28,660.78, 39,552.02 and 16,560.29 is: 22,853.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,660.78 : 39,552.02 = 16,560.29 : x
  2. Step 2: Convert to fraction form
    28,660.78/39,552.02 = 16,560.29/x
  3. Step 3: Cross multiply
    28,660.78x = 39,552.02 × 16,560.29
  4. Step 4: Simplify right side
    28,660.78x = 654,993,061.57
  5. Step 5: Solve for x
    x = 654,993,061.57/28,660.78
  6. Step 6: Final answer
    x = 22,853.29

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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.