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Finding the Fourth Proportional to 21,359.71, 32,042.13 and 8,888.16

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Solution

The fourth proportional to 21,359.71, 32,042.13 and 8,888.16 is: 13,333.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,359.71 : 32,042.13 = 8,888.16 : x
  2. Step 2: Convert to fraction form
    21,359.71/32,042.13 = 8,888.16/x
  3. Step 3: Cross multiply
    21,359.71x = 32,042.13 × 8,888.16
  4. Step 4: Simplify right side
    21,359.71x = 284,795,665.01
  5. Step 5: Solve for x
    x = 284,795,665.01/21,359.71
  6. Step 6: Final answer
    x = 13,333.31

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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.