Home / 30,905.06-42,655.38-17,476.88

Finding the Fourth Proportional to 30,905.06, 42,655.38 and 17,476.88

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Solution

The fourth proportional to 30,905.06, 42,655.38 and 17,476.88 is: 24,121.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,905.06 : 42,655.38 = 17,476.88 : x
  2. Step 2: Convert to fraction form
    30,905.06/42,655.38 = 17,476.88/x
  3. Step 3: Cross multiply
    30,905.06x = 42,655.38 × 17,476.88
  4. Step 4: Simplify right side
    30,905.06x = 745,482,957.61
  5. Step 5: Solve for x
    x = 745,482,957.61/30,905.06
  6. Step 6: Final answer
    x = 24,121.71

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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.