Home / 21,475.50-29,649.15-14,036.46

Finding the Fourth Proportional to 21,475.50, 29,649.15 and 14,036.46

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Solution

The fourth proportional to 21,475.50, 29,649.15 and 14,036.46 is: 19,378.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,475.50 : 29,649.15 = 14,036.46 : x
  2. Step 2: Convert to fraction form
    21,475.50/29,649.15 = 14,036.46/x
  3. Step 3: Cross multiply
    21,475.50x = 29,649.15 × 14,036.46
  4. Step 4: Simplify right side
    21,475.50x = 416,169,108.01
  5. Step 5: Solve for x
    x = 416,169,108.01/21,475.50
  6. Step 6: Final answer
    x = 19,378.79

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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.