Home / 31,159.26-42,999.12-17,011.80

Finding the Fourth Proportional to 31,159.26, 42,999.12 and 17,011.80

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Solution

The fourth proportional to 31,159.26, 42,999.12 and 17,011.80 is: 23,475.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,159.26 : 42,999.12 = 17,011.80 : x
  2. Step 2: Convert to fraction form
    31,159.26/42,999.12 = 17,011.80/x
  3. Step 3: Cross multiply
    31,159.26x = 42,999.12 × 17,011.80
  4. Step 4: Simplify right side
    31,159.26x = 731,492,429.62
  5. Step 5: Solve for x
    x = 731,492,429.62/31,159.26
  6. Step 6: Final answer
    x = 23,475.92

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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.