Home / 21,333.60-31,998.15-6,542.58

Finding the Fourth Proportional to 21,333.60, 31,998.15 and 6,542.58

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Solution

The fourth proportional to 21,333.60, 31,998.15 and 6,542.58 is: 9,813.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,333.60 : 31,998.15 = 6,542.58 : x
  2. Step 2: Convert to fraction form
    21,333.60/31,998.15 = 6,542.58/x
  3. Step 3: Cross multiply
    21,333.60x = 31,998.15 × 6,542.58
  4. Step 4: Simplify right side
    21,333.60x = 209,350,456.23
  5. Step 5: Solve for x
    x = 209,350,456.23/21,333.60
  6. Step 6: Final answer
    x = 9,813.18

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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.