Home / 30,990.04-42,766.80-17,560.96

Finding the Fourth Proportional to 30,990.04, 42,766.80 and 17,560.96

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Solution

The fourth proportional to 30,990.04, 42,766.80 and 17,560.96 is: 24,234.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,990.04 : 42,766.80 = 17,560.96 : x
  2. Step 2: Convert to fraction form
    30,990.04/42,766.80 = 17,560.96/x
  3. Step 3: Cross multiply
    30,990.04x = 42,766.80 × 17,560.96
  4. Step 4: Simplify right side
    30,990.04x = 751,026,064.13
  5. Step 5: Solve for x
    x = 751,026,064.13/30,990.04
  6. Step 6: Final answer
    x = 24,234.43

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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.