Home / 42,201.18-63,314.46-12,619.98

Finding the Fourth Proportional to 42,201.18, 63,314.46 and 12,619.98

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Solution

The fourth proportional to 42,201.18, 63,314.46 and 12,619.98 is: 18,933.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,201.18 : 63,314.46 = 12,619.98 : x
  2. Step 2: Convert to fraction form
    42,201.18/63,314.46 = 12,619.98/x
  3. Step 3: Cross multiply
    42,201.18x = 63,314.46 × 12,619.98
  4. Step 4: Simplify right side
    42,201.18x = 799,027,218.91
  5. Step 5: Solve for x
    x = 799,027,218.91/42,201.18
  6. Step 6: Final answer
    x = 18,933.76

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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.