Home / 21,251.29-29,332.95-14,177.69

Finding the Fourth Proportional to 21,251.29, 29,332.95 and 14,177.69

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Solution

The fourth proportional to 21,251.29, 29,332.95 and 14,177.69 is: 19,569.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,251.29 : 29,332.95 = 14,177.69 : x
  2. Step 2: Convert to fraction form
    21,251.29/29,332.95 = 14,177.69/x
  3. Step 3: Cross multiply
    21,251.29x = 29,332.95 × 14,177.69
  4. Step 4: Simplify right side
    21,251.29x = 415,873,471.89
  5. Step 5: Solve for x
    x = 415,873,471.89/21,251.29
  6. Step 6: Final answer
    x = 19,569.33

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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.