Home / 20,124.59-27,752.63-12,947.18

Finding the Fourth Proportional to 20,124.59, 27,752.63 and 12,947.18

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Solution

The fourth proportional to 20,124.59, 27,752.63 and 12,947.18 is: 17,854.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,124.59 : 27,752.63 = 12,947.18 : x
  2. Step 2: Convert to fraction form
    20,124.59/27,752.63 = 12,947.18/x
  3. Step 3: Cross multiply
    20,124.59x = 27,752.63 × 12,947.18
  4. Step 4: Simplify right side
    20,124.59x = 359,318,092.58
  5. Step 5: Solve for x
    x = 359,318,092.58/20,124.59
  6. Step 6: Final answer
    x = 17,854.68

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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.