Home / 30,442.62-42,009.96-17,013.92

Finding the Fourth Proportional to 30,442.62, 42,009.96 and 17,013.92

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Solution

The fourth proportional to 30,442.62, 42,009.96 and 17,013.92 is: 23,478.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,442.62 : 42,009.96 = 17,013.92 : x
  2. Step 2: Convert to fraction form
    30,442.62/42,009.96 = 17,013.92/x
  3. Step 3: Cross multiply
    30,442.62x = 42,009.96 × 17,013.92
  4. Step 4: Simplify right side
    30,442.62x = 714,754,098.64
  5. Step 5: Solve for x
    x = 714,754,098.64/30,442.62
  6. Step 6: Final answer
    x = 23,478.73

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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.