Home / 21,442.74-29,575.17-14,729.46

Finding the Fourth Proportional to 21,442.74, 29,575.17 and 14,729.46

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Solution

The fourth proportional to 21,442.74, 29,575.17 and 14,729.46 is: 20,315.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,442.74 : 29,575.17 = 14,729.46 : x
  2. Step 2: Convert to fraction form
    21,442.74/29,575.17 = 14,729.46/x
  3. Step 3: Cross multiply
    21,442.74x = 29,575.17 × 14,729.46
  4. Step 4: Simplify right side
    21,442.74x = 435,626,283.51
  5. Step 5: Solve for x
    x = 435,626,283.51/21,442.74
  6. Step 6: Final answer
    x = 20,315.79

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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.