Home / 21,294.08-31,940.16-6,502.40

Finding the Fourth Proportional to 21,294.08, 31,940.16 and 6,502.40

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Solution

The fourth proportional to 21,294.08, 31,940.16 and 6,502.40 is: 9,753.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,294.08 : 31,940.16 = 6,502.40 : x
  2. Step 2: Convert to fraction form
    21,294.08/31,940.16 = 6,502.40/x
  3. Step 3: Cross multiply
    21,294.08x = 31,940.16 × 6,502.40
  4. Step 4: Simplify right side
    21,294.08x = 207,687,696.38
  5. Step 5: Solve for x
    x = 207,687,696.38/21,294.08
  6. Step 6: Final answer
    x = 9,753.31

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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.