Home / 30,158.25-45,244.68-9,381.75

Finding the Fourth Proportional to 30,158.25, 45,244.68 and 9,381.75

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Solution

The fourth proportional to 30,158.25, 45,244.68 and 9,381.75 is: 14,074.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,158.25 : 45,244.68 = 9,381.75 : x
  2. Step 2: Convert to fraction form
    30,158.25/45,244.68 = 9,381.75/x
  3. Step 3: Cross multiply
    30,158.25x = 45,244.68 × 9,381.75
  4. Step 4: Simplify right side
    30,158.25x = 424,474,276.59
  5. Step 5: Solve for x
    x = 424,474,276.59/30,158.25
  6. Step 6: Final answer
    x = 14,074.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.