Home / 21,251.43-31,833.34-12,465.16

Finding the Fourth Proportional to 21,251.43, 31,833.34 and 12,465.16

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Solution

The fourth proportional to 21,251.43, 31,833.34 and 12,465.16 is: 18,672.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,251.43 : 31,833.34 = 12,465.16 : x
  2. Step 2: Convert to fraction form
    21,251.43/31,833.34 = 12,465.16/x
  3. Step 3: Cross multiply
    21,251.43x = 31,833.34 × 12,465.16
  4. Step 4: Simplify right side
    21,251.43x = 396,807,565.69
  5. Step 5: Solve for x
    x = 396,807,565.69/21,251.43
  6. Step 6: Final answer
    x = 18,672.04

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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.