Home / 31,001.88-42,706.67-22,478.96

Finding the Fourth Proportional to 31,001.88, 42,706.67 and 22,478.96

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Solution

The fourth proportional to 31,001.88, 42,706.67 and 22,478.96 is: 30,965.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,001.88 : 42,706.67 = 22,478.96 : x
  2. Step 2: Convert to fraction form
    31,001.88/42,706.67 = 22,478.96/x
  3. Step 3: Cross multiply
    31,001.88x = 42,706.67 × 22,478.96
  4. Step 4: Simplify right side
    31,001.88x = 960,001,526.66
  5. Step 5: Solve for x
    x = 960,001,526.66/31,001.88
  6. Step 6: Final answer
    x = 30,965.91

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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.