Home / 42,183.12-63,274.20-12,601.20

Finding the Fourth Proportional to 42,183.12, 63,274.20 and 12,601.20

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Solution

The fourth proportional to 42,183.12, 63,274.20 and 12,601.20 is: 18,901.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,183.12 : 63,274.20 = 12,601.20 : x
  2. Step 2: Convert to fraction form
    42,183.12/63,274.20 = 12,601.20/x
  3. Step 3: Cross multiply
    42,183.12x = 63,274.20 × 12,601.20
  4. Step 4: Simplify right side
    42,183.12x = 797,330,849.04
  5. Step 5: Solve for x
    x = 797,330,849.04/42,183.12
  6. Step 6: Final answer
    x = 18,901.66

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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.