Home / 30,737.15-42,421.31-17,311.04

Finding the Fourth Proportional to 30,737.15, 42,421.31 and 17,311.04

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Solution

The fourth proportional to 30,737.15, 42,421.31 and 17,311.04 is: 23,891.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,737.15 : 42,421.31 = 17,311.04 : x
  2. Step 2: Convert to fraction form
    30,737.15/42,421.31 = 17,311.04/x
  3. Step 3: Cross multiply
    30,737.15x = 42,421.31 × 17,311.04
  4. Step 4: Simplify right side
    30,737.15x = 734,356,695.60
  5. Step 5: Solve for x
    x = 734,356,695.60/30,737.15
  6. Step 6: Final answer
    x = 23,891.51

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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.