Home / 31,172.15-43,006.91-17,740.06

Finding the Fourth Proportional to 31,172.15, 43,006.91 and 17,740.06

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Solution

The fourth proportional to 31,172.15, 43,006.91 and 17,740.06 is: 24,475.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,172.15 : 43,006.91 = 17,740.06 : x
  2. Step 2: Convert to fraction form
    31,172.15/43,006.91 = 17,740.06/x
  3. Step 3: Cross multiply
    31,172.15x = 43,006.91 × 17,740.06
  4. Step 4: Simplify right side
    31,172.15x = 762,944,967.60
  5. Step 5: Solve for x
    x = 762,944,967.60/31,172.15
  6. Step 6: Final answer
    x = 24,475.21

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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.