Home / 21,073.36-31,593.40-14,479.96

Finding the Fourth Proportional to 21,073.36, 31,593.40 and 14,479.96

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Solution

The fourth proportional to 21,073.36, 31,593.40 and 14,479.96 is: 21,708.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,073.36 : 31,593.40 = 14,479.96 : x
  2. Step 2: Convert to fraction form
    21,073.36/31,593.40 = 14,479.96/x
  3. Step 3: Cross multiply
    21,073.36x = 31,593.40 × 14,479.96
  4. Step 4: Simplify right side
    21,073.36x = 457,471,168.26
  5. Step 5: Solve for x
    x = 457,471,168.26/21,073.36
  6. Step 6: Final answer
    x = 21,708.51

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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.