Home / 30,251.28-45,376.90-9,191.24

Finding the Fourth Proportional to 30,251.28, 45,376.90 and 9,191.24

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Solution

The fourth proportional to 30,251.28, 45,376.90 and 9,191.24 is: 13,786.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,251.28 : 45,376.90 = 9,191.24 : x
  2. Step 2: Convert to fraction form
    30,251.28/45,376.90 = 9,191.24/x
  3. Step 3: Cross multiply
    30,251.28x = 45,376.90 × 9,191.24
  4. Step 4: Simplify right side
    30,251.28x = 417,069,978.36
  5. Step 5: Solve for x
    x = 417,069,978.36/30,251.28
  6. Step 6: Final answer
    x = 13,786.85

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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.