Home / 30,219.48-45,344.72-12,463.78

Finding the Fourth Proportional to 30,219.48, 45,344.72 and 12,463.78

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Solution

The fourth proportional to 30,219.48, 45,344.72 and 12,463.78 is: 18,702.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,219.48 : 45,344.72 = 12,463.78 : x
  2. Step 2: Convert to fraction form
    30,219.48/45,344.72 = 12,463.78/x
  3. Step 3: Cross multiply
    30,219.48x = 45,344.72 × 12,463.78
  4. Step 4: Simplify right side
    30,219.48x = 565,166,614.24
  5. Step 5: Solve for x
    x = 565,166,614.24/30,219.48
  6. Step 6: Final answer
    x = 18,702.06

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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.