Home / 20,125.59-27,754-12,948.18

Finding the Fourth Proportional to 20,125.59, 27,754 and 12,948.18

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Solution

The fourth proportional to 20,125.59, 27,754 and 12,948.18 is: 17,856.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,125.59 : 27,754 = 12,948.18 : x
  2. Step 2: Convert to fraction form
    20,125.59/27,754 = 12,948.18/x
  3. Step 3: Cross multiply
    20,125.59x = 27,754 × 12,948.18
  4. Step 4: Simplify right side
    20,125.59x = 359,363,787.72
  5. Step 5: Solve for x
    x = 359,363,787.72/20,125.59
  6. Step 6: Final answer
    x = 17,856.06

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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.