Home / 21,391.44-29,508.33-12,437.95

Finding the Fourth Proportional to 21,391.44, 29,508.33 and 12,437.95

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Solution

The fourth proportional to 21,391.44, 29,508.33 and 12,437.95 is: 17,157.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,391.44 : 29,508.33 = 12,437.95 : x
  2. Step 2: Convert to fraction form
    21,391.44/29,508.33 = 12,437.95/x
  3. Step 3: Cross multiply
    21,391.44x = 29,508.33 × 12,437.95
  4. Step 4: Simplify right side
    21,391.44x = 367,023,133.12
  5. Step 5: Solve for x
    x = 367,023,133.12/21,391.44
  6. Step 6: Final answer
    x = 17,157.48

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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.