Home / 27,454.95-37,890.18-15,520.41

Finding the Fourth Proportional to 27,454.95, 37,890.18 and 15,520.41

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Solution

The fourth proportional to 27,454.95, 37,890.18 and 15,520.41 is: 21,419.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,454.95 : 37,890.18 = 15,520.41 : x
  2. Step 2: Convert to fraction form
    27,454.95/37,890.18 = 15,520.41/x
  3. Step 3: Cross multiply
    27,454.95x = 37,890.18 × 15,520.41
  4. Step 4: Simplify right side
    27,454.95x = 588,071,128.57
  5. Step 5: Solve for x
    x = 588,071,128.57/27,454.95
  6. Step 6: Final answer
    x = 21,419.49

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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.