Home / 42,303.70-63,449.40-11,138.92

Finding the Fourth Proportional to 42,303.70, 63,449.40 and 11,138.92

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Solution

The fourth proportional to 42,303.70, 63,449.40 and 11,138.92 is: 16,706.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,303.70 : 63,449.40 = 11,138.92 : x
  2. Step 2: Convert to fraction form
    42,303.70/63,449.40 = 11,138.92/x
  3. Step 3: Cross multiply
    42,303.70x = 63,449.40 × 11,138.92
  4. Step 4: Simplify right side
    42,303.70x = 706,757,790.65
  5. Step 5: Solve for x
    x = 706,757,790.65/42,303.70
  6. Step 6: Final answer
    x = 16,706.76

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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.