Home / 30,442.65-42,010.71-17,013.90

Finding the Fourth Proportional to 30,442.65, 42,010.71 and 17,013.90

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Solution

The fourth proportional to 30,442.65, 42,010.71 and 17,013.90 is: 23,479.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,442.65 : 42,010.71 = 17,013.90 : x
  2. Step 2: Convert to fraction form
    30,442.65/42,010.71 = 17,013.90/x
  3. Step 3: Cross multiply
    30,442.65x = 42,010.71 × 17,013.90
  4. Step 4: Simplify right side
    30,442.65x = 714,766,018.87
  5. Step 5: Solve for x
    x = 714,766,018.87/30,442.65
  6. Step 6: Final answer
    x = 23,479.10

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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.