Home / 42,020.88-57,988.83-22,900.66

Finding the Fourth Proportional to 42,020.88, 57,988.83 and 22,900.66

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Solution

The fourth proportional to 42,020.88, 57,988.83 and 22,900.66 is: 31,602.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,020.88 : 57,988.83 = 22,900.66 : x
  2. Step 2: Convert to fraction form
    42,020.88/57,988.83 = 22,900.66/x
  3. Step 3: Cross multiply
    42,020.88x = 57,988.83 × 22,900.66
  4. Step 4: Simplify right side
    42,020.88x = 1,327,982,479.63
  5. Step 5: Solve for x
    x = 1,327,982,479.63/42,020.88
  6. Step 6: Final answer
    x = 31,602.92

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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.