Home / 28,654.80-39,538.24-16,715.15

Finding the Fourth Proportional to 28,654.80, 39,538.24 and 16,715.15

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Solution

The fourth proportional to 28,654.80, 39,538.24 and 16,715.15 is: 23,063.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,654.80 : 39,538.24 = 16,715.15 : x
  2. Step 2: Convert to fraction form
    28,654.80/39,538.24 = 16,715.15/x
  3. Step 3: Cross multiply
    28,654.80x = 39,538.24 × 16,715.15
  4. Step 4: Simplify right side
    28,654.80x = 660,887,612.34
  5. Step 5: Solve for x
    x = 660,887,612.34/28,654.80
  6. Step 6: Final answer
    x = 23,063.77

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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.