Home / 30,990.52-42,757.42-17,559.64

Finding the Fourth Proportional to 30,990.52, 42,757.42 and 17,559.64

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Solution

The fourth proportional to 30,990.52, 42,757.42 and 17,559.64 is: 24,226.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,990.52 : 42,757.42 = 17,559.64 : x
  2. Step 2: Convert to fraction form
    30,990.52/42,757.42 = 17,559.64/x
  3. Step 3: Cross multiply
    30,990.52x = 42,757.42 × 17,559.64
  4. Step 4: Simplify right side
    30,990.52x = 750,804,902.53
  5. Step 5: Solve for x
    x = 750,804,902.53/30,990.52
  6. Step 6: Final answer
    x = 24,226.92

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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.