Home / 28,318.90-39,095.10-17,711.95

Finding the Fourth Proportional to 28,318.90, 39,095.10 and 17,711.95

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Solution

The fourth proportional to 28,318.90, 39,095.10 and 17,711.95 is: 24,451.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,318.90 : 39,095.10 = 17,711.95 : x
  2. Step 2: Convert to fraction form
    28,318.90/39,095.10 = 17,711.95/x
  3. Step 3: Cross multiply
    28,318.90x = 39,095.10 × 17,711.95
  4. Step 4: Simplify right side
    28,318.90x = 692,450,456.45
  5. Step 5: Solve for x
    x = 692,450,456.45/28,318.90
  6. Step 6: Final answer
    x = 24,451.88

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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.