Home / 30,589.20-42,211.44-17,158.08

Finding the Fourth Proportional to 30,589.20, 42,211.44 and 17,158.08

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Solution

The fourth proportional to 30,589.20, 42,211.44 and 17,158.08 is: 23,677.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,589.20 : 42,211.44 = 17,158.08 : x
  2. Step 2: Convert to fraction form
    30,589.20/42,211.44 = 17,158.08/x
  3. Step 3: Cross multiply
    30,589.20x = 42,211.44 × 17,158.08
  4. Step 4: Simplify right side
    30,589.20x = 724,267,264.44
  5. Step 5: Solve for x
    x = 724,267,264.44/30,589.20
  6. Step 6: Final answer
    x = 23,677.22

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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.