Home / 21,354.93-31,955.85-13,037.04

Finding the Fourth Proportional to 21,354.93, 31,955.85 and 13,037.04

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Solution

The fourth proportional to 21,354.93, 31,955.85 and 13,037.04 is: 19,508.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,354.93 : 31,955.85 = 13,037.04 : x
  2. Step 2: Convert to fraction form
    21,354.93/31,955.85 = 13,037.04/x
  3. Step 3: Cross multiply
    21,354.93x = 31,955.85 × 13,037.04
  4. Step 4: Simplify right side
    21,354.93x = 416,609,694.68
  5. Step 5: Solve for x
    x = 416,609,694.68/21,354.93
  6. Step 6: Final answer
    x = 19,508.83

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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.