Home / 21,305.09-31,932.12-15,055.74

Finding the Fourth Proportional to 21,305.09, 31,932.12 and 15,055.74

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Solution

The fourth proportional to 21,305.09, 31,932.12 and 15,055.74 is: 22,565.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,305.09 : 31,932.12 = 15,055.74 : x
  2. Step 2: Convert to fraction form
    21,305.09/31,932.12 = 15,055.74/x
  3. Step 3: Cross multiply
    21,305.09x = 31,932.12 × 15,055.74
  4. Step 4: Simplify right side
    21,305.09x = 480,761,752.83
  5. Step 5: Solve for x
    x = 480,761,752.83/21,305.09
  6. Step 6: Final answer
    x = 22,565.58

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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.