Home / 30,460.46-42,017.91-17,882.78

Finding the Fourth Proportional to 30,460.46, 42,017.91 and 17,882.78

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Solution

The fourth proportional to 30,460.46, 42,017.91 and 17,882.78 is: 24,667.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,460.46 : 42,017.91 = 17,882.78 : x
  2. Step 2: Convert to fraction form
    30,460.46/42,017.91 = 17,882.78/x
  3. Step 3: Cross multiply
    30,460.46x = 42,017.91 × 17,882.78
  4. Step 4: Simplify right side
    30,460.46x = 751,397,040.59
  5. Step 5: Solve for x
    x = 751,397,040.59/30,460.46
  6. Step 6: Final answer
    x = 24,667.95

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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.