Home / 30,542.61-42,148.31-17,113.83

Finding the Fourth Proportional to 30,542.61, 42,148.31 and 17,113.83

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Solution

The fourth proportional to 30,542.61, 42,148.31 and 17,113.83 is: 23,616.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,542.61 : 42,148.31 = 17,113.83 : x
  2. Step 2: Convert to fraction form
    30,542.61/42,148.31 = 17,113.83/x
  3. Step 3: Cross multiply
    30,542.61x = 42,148.31 × 17,113.83
  4. Step 4: Simplify right side
    30,542.61x = 721,318,926.56
  5. Step 5: Solve for x
    x = 721,318,926.56/30,542.61
  6. Step 6: Final answer
    x = 23,616.81

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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.