Home / 42,021.28-57,988.98-23,158

Finding the Fourth Proportional to 42,021.28, 57,988.98 and 23,158

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Solution

The fourth proportional to 42,021.28, 57,988.98 and 23,158 is: 31,957.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,021.28 : 57,988.98 = 23,158 : x
  2. Step 2: Convert to fraction form
    42,021.28/57,988.98 = 23,158/x
  3. Step 3: Cross multiply
    42,021.28x = 57,988.98 × 23,158
  4. Step 4: Simplify right side
    42,021.28x = 1,342,908,798.84
  5. Step 5: Solve for x
    x = 1,342,908,798.84/42,021.28
  6. Step 6: Final answer
    x = 31,957.83

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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.