Home / 20,691.82-31,050.10-9,602.35

Finding the Fourth Proportional to 20,691.82, 31,050.10 and 9,602.35

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Solution

The fourth proportional to 20,691.82, 31,050.10 and 9,602.35 is: 14,409.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,691.82 : 31,050.10 = 9,602.35 : x
  2. Step 2: Convert to fraction form
    20,691.82/31,050.10 = 9,602.35/x
  3. Step 3: Cross multiply
    20,691.82x = 31,050.10 × 9,602.35
  4. Step 4: Simplify right side
    20,691.82x = 298,153,862.11
  5. Step 5: Solve for x
    x = 298,153,862.11/20,691.82
  6. Step 6: Final answer
    x = 14,409.26

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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.