Home / 31,363.07-43,280.56-17,215.91

Finding the Fourth Proportional to 31,363.07, 43,280.56 and 17,215.91

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Solution

The fourth proportional to 31,363.07, 43,280.56 and 17,215.91 is: 23,757.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,363.07 : 43,280.56 = 17,215.91 : x
  2. Step 2: Convert to fraction form
    31,363.07/43,280.56 = 17,215.91/x
  3. Step 3: Cross multiply
    31,363.07x = 43,280.56 × 17,215.91
  4. Step 4: Simplify right side
    31,363.07x = 745,114,193.13
  5. Step 5: Solve for x
    x = 745,114,193.13/31,363.07
  6. Step 6: Final answer
    x = 23,757.70

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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.