Home / 31,397.70-47,112.71-17,355.12

Finding the Fourth Proportional to 31,397.70, 47,112.71 and 17,355.12

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Solution

The fourth proportional to 31,397.70, 47,112.71 and 17,355.12 is: 26,041.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,397.70 : 47,112.71 = 17,355.12 : x
  2. Step 2: Convert to fraction form
    31,397.70/47,112.71 = 17,355.12/x
  3. Step 3: Cross multiply
    31,397.70x = 47,112.71 × 17,355.12
  4. Step 4: Simplify right side
    31,397.70x = 817,646,735.58
  5. Step 5: Solve for x
    x = 817,646,735.58/31,397.70
  6. Step 6: Final answer
    x = 26,041.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.