Home / 21,442.99-29,575.52-14,729.71

Finding the Fourth Proportional to 21,442.99, 29,575.52 and 14,729.71

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Solution

The fourth proportional to 21,442.99, 29,575.52 and 14,729.71 is: 20,316.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,442.99 : 29,575.52 = 14,729.71 : x
  2. Step 2: Convert to fraction form
    21,442.99/29,575.52 = 14,729.71/x
  3. Step 3: Cross multiply
    21,442.99x = 29,575.52 × 14,729.71
  4. Step 4: Simplify right side
    21,442.99x = 435,638,759.05
  5. Step 5: Solve for x
    x = 435,638,759.05/21,442.99
  6. Step 6: Final answer
    x = 20,316.14

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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.