Home / 42,021.08-57,988.80-23,158.22

Finding the Fourth Proportional to 42,021.08, 57,988.80 and 23,158.22

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Solution

The fourth proportional to 42,021.08, 57,988.80 and 23,158.22 is: 31,958.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,021.08 : 57,988.80 = 23,158.22 : x
  2. Step 2: Convert to fraction form
    42,021.08/57,988.80 = 23,158.22/x
  3. Step 3: Cross multiply
    42,021.08x = 57,988.80 × 23,158.22
  4. Step 4: Simplify right side
    42,021.08x = 1,342,917,387.94
  5. Step 5: Solve for x
    x = 1,342,917,387.94/42,021.08
  6. Step 6: Final answer
    x = 31,958.18

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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.