Home / 21,252.29-31,849.27-13,447.13

Finding the Fourth Proportional to 21,252.29, 31,849.27 and 13,447.13

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Solution

The fourth proportional to 21,252.29, 31,849.27 and 13,447.13 is: 20,152.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,252.29 : 31,849.27 = 13,447.13 : x
  2. Step 2: Convert to fraction form
    21,252.29/31,849.27 = 13,447.13/x
  3. Step 3: Cross multiply
    21,252.29x = 31,849.27 × 13,447.13
  4. Step 4: Simplify right side
    21,252.29x = 428,281,274.10
  5. Step 5: Solve for x
    x = 428,281,274.10/21,252.29
  6. Step 6: Final answer
    x = 20,152.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.