Home / 20,773.16-31,160.08-19,764.72

Finding the Fourth Proportional to 20,773.16, 31,160.08 and 19,764.72

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Solution

The fourth proportional to 20,773.16, 31,160.08 and 19,764.72 is: 29,647.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,773.16 : 31,160.08 = 19,764.72 : x
  2. Step 2: Convert to fraction form
    20,773.16/31,160.08 = 19,764.72/x
  3. Step 3: Cross multiply
    20,773.16x = 31,160.08 × 19,764.72
  4. Step 4: Simplify right side
    20,773.16x = 615,870,256.38
  5. Step 5: Solve for x
    x = 615,870,256.38/20,773.16
  6. Step 6: Final answer
    x = 29,647.40

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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.