Home / 21,490.31-32,192.28-10,959.90

Finding the Fourth Proportional to 21,490.31, 32,192.28 and 10,959.90

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Solution

The fourth proportional to 21,490.31, 32,192.28 and 10,959.90 is: 16,417.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,490.31 : 32,192.28 = 10,959.90 : x
  2. Step 2: Convert to fraction form
    21,490.31/32,192.28 = 10,959.90/x
  3. Step 3: Cross multiply
    21,490.31x = 32,192.28 × 10,959.90
  4. Step 4: Simplify right side
    21,490.31x = 352,824,169.57
  5. Step 5: Solve for x
    x = 352,824,169.57/21,490.31
  6. Step 6: Final answer
    x = 16,417.83

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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.