Home / 21,701.36-29,931.45-15,752.72

Finding the Fourth Proportional to 21,701.36, 29,931.45 and 15,752.72

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Solution

The fourth proportional to 21,701.36, 29,931.45 and 15,752.72 is: 21,726.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,701.36 : 29,931.45 = 15,752.72 : x
  2. Step 2: Convert to fraction form
    21,701.36/29,931.45 = 15,752.72/x
  3. Step 3: Cross multiply
    21,701.36x = 29,931.45 × 15,752.72
  4. Step 4: Simplify right side
    21,701.36x = 471,501,751.04
  5. Step 5: Solve for x
    x = 471,501,751.04/21,701.36
  6. Step 6: Final answer
    x = 21,726.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.