Home / 30,436.76-42,003.21-17,008.88

Finding the Fourth Proportional to 30,436.76, 42,003.21 and 17,008.88

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Solution

The fourth proportional to 30,436.76, 42,003.21 and 17,008.88 is: 23,472.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,436.76 : 42,003.21 = 17,008.88 : x
  2. Step 2: Convert to fraction form
    30,436.76/42,003.21 = 17,008.88/x
  3. Step 3: Cross multiply
    30,436.76x = 42,003.21 × 17,008.88
  4. Step 4: Simplify right side
    30,436.76x = 714,427,630.97
  5. Step 5: Solve for x
    x = 714,427,630.97/30,436.76
  6. Step 6: Final answer
    x = 23,472.52

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Half scale
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Double scale
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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.