Home / 28,752.95-39,678.99-16,177.70

Finding the Fourth Proportional to 28,752.95, 39,678.99 and 16,177.70

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Solution

The fourth proportional to 28,752.95, 39,678.99 and 16,177.70 is: 22,325.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,752.95 : 39,678.99 = 16,177.70 : x
  2. Step 2: Convert to fraction form
    28,752.95/39,678.99 = 16,177.70/x
  3. Step 3: Cross multiply
    28,752.95x = 39,678.99 × 16,177.70
  4. Step 4: Simplify right side
    28,752.95x = 641,914,796.52
  5. Step 5: Solve for x
    x = 641,914,796.52/28,752.95
  6. Step 6: Final answer
    x = 22,325.18

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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.