Home / 31,159.46-43,000.79-17,012.40

Finding the Fourth Proportional to 31,159.46, 43,000.79 and 17,012.40

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Solution

The fourth proportional to 31,159.46, 43,000.79 and 17,012.40 is: 23,477.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,159.46 : 43,000.79 = 17,012.40 : x
  2. Step 2: Convert to fraction form
    31,159.46/43,000.79 = 17,012.40/x
  3. Step 3: Cross multiply
    31,159.46x = 43,000.79 × 17,012.40
  4. Step 4: Simplify right side
    31,159.46x = 731,546,639.80
  5. Step 5: Solve for x
    x = 731,546,639.80/31,159.46
  6. Step 6: Final answer
    x = 23,477.51

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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.