Home / 31,465.13-43,422.69-17,125.90

Finding the Fourth Proportional to 31,465.13, 43,422.69 and 17,125.90

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Solution

The fourth proportional to 31,465.13, 43,422.69 and 17,125.90 is: 23,634.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,465.13 : 43,422.69 = 17,125.90 : x
  2. Step 2: Convert to fraction form
    31,465.13/43,422.69 = 17,125.90/x
  3. Step 3: Cross multiply
    31,465.13x = 43,422.69 × 17,125.90
  4. Step 4: Simplify right side
    31,465.13x = 743,652,646.67
  5. Step 5: Solve for x
    x = 743,652,646.67/31,465.13
  6. Step 6: Final answer
    x = 23,634.18

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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.