Home / 31,208.81-43,068.20-17,061.66

Finding the Fourth Proportional to 31,208.81, 43,068.20 and 17,061.66

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Solution

The fourth proportional to 31,208.81, 43,068.20 and 17,061.66 is: 23,545.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,208.81 : 43,068.20 = 17,061.66 : x
  2. Step 2: Convert to fraction form
    31,208.81/43,068.20 = 17,061.66/x
  3. Step 3: Cross multiply
    31,208.81x = 43,068.20 × 17,061.66
  4. Step 4: Simplify right side
    31,208.81x = 734,814,899.90
  5. Step 5: Solve for x
    x = 734,814,899.90/31,208.81
  6. Step 6: Final answer
    x = 23,545.11

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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.