Home / 21,260.12-31,874.54-10,724.96

Finding the Fourth Proportional to 21,260.12, 31,874.54 and 10,724.96

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Solution

The fourth proportional to 21,260.12, 31,874.54 and 10,724.96 is: 16,079.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260.12 : 31,874.54 = 10,724.96 : x
  2. Step 2: Convert to fraction form
    21,260.12/31,874.54 = 10,724.96/x
  3. Step 3: Cross multiply
    21,260.12x = 31,874.54 × 10,724.96
  4. Step 4: Simplify right side
    21,260.12x = 341,853,166.52
  5. Step 5: Solve for x
    x = 341,853,166.52/21,260.12
  6. Step 6: Final answer
    x = 16,079.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.