Home / 31,209.30-43,066.08-17,780.04

Finding the Fourth Proportional to 31,209.30, 43,066.08 and 17,780.04

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Solution

The fourth proportional to 31,209.30, 43,066.08 and 17,780.04 is: 24,534.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,209.30 : 43,066.08 = 17,780.04 : x
  2. Step 2: Convert to fraction form
    31,209.30/43,066.08 = 17,780.04/x
  3. Step 3: Cross multiply
    31,209.30x = 43,066.08 × 17,780.04
  4. Step 4: Simplify right side
    31,209.30x = 765,716,625.04
  5. Step 5: Solve for x
    x = 765,716,625.04/31,209.30
  6. Step 6: Final answer
    x = 24,534.89

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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.