Home / 21,649.02-29,873.36-12,572.61

Finding the Fourth Proportional to 21,649.02, 29,873.36 and 12,572.61

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Solution

The fourth proportional to 21,649.02, 29,873.36 and 12,572.61 is: 17,348.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,649.02 : 29,873.36 = 12,572.61 : x
  2. Step 2: Convert to fraction form
    21,649.02/29,873.36 = 12,572.61/x
  3. Step 3: Cross multiply
    21,649.02x = 29,873.36 × 12,572.61
  4. Step 4: Simplify right side
    21,649.02x = 375,586,104.67
  5. Step 5: Solve for x
    x = 375,586,104.67/21,649.02
  6. Step 6: Final answer
    x = 17,348.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.