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Finding the Fourth Proportional to 30,885.04, 42,623.04 and 17,456.88

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Solution

The fourth proportional to 30,885.04, 42,623.04 and 17,456.88 is: 24,091.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,885.04 : 42,623.04 = 17,456.88 : x
  2. Step 2: Convert to fraction form
    30,885.04/42,623.04 = 17,456.88/x
  3. Step 3: Cross multiply
    30,885.04x = 42,623.04 × 17,456.88
  4. Step 4: Simplify right side
    30,885.04x = 744,065,294.52
  5. Step 5: Solve for x
    x = 744,065,294.52/30,885.04
  6. Step 6: Final answer
    x = 24,091.45

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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.