Home / 30,458.89-42,034.22-17,030.71

Finding the Fourth Proportional to 30,458.89, 42,034.22 and 17,030.71

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Solution

The fourth proportional to 30,458.89, 42,034.22 and 17,030.71 is: 23,502.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,458.89 : 42,034.22 = 17,030.71 : x
  2. Step 2: Convert to fraction form
    30,458.89/42,034.22 = 17,030.71/x
  3. Step 3: Cross multiply
    30,458.89x = 42,034.22 × 17,030.71
  4. Step 4: Simplify right side
    30,458.89x = 715,872,610.90
  5. Step 5: Solve for x
    x = 715,872,610.90/30,458.89
  6. Step 6: Final answer
    x = 23,502.91

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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.