Home / 42,115.65-63,144.21-15,813.33

Finding the Fourth Proportional to 42,115.65, 63,144.21 and 15,813.33

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Solution

The fourth proportional to 42,115.65, 63,144.21 and 15,813.33 is: 23,709.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,115.65 : 63,144.21 = 15,813.33 : x
  2. Step 2: Convert to fraction form
    42,115.65/63,144.21 = 15,813.33/x
  3. Step 3: Cross multiply
    42,115.65x = 63,144.21 × 15,813.33
  4. Step 4: Simplify right side
    42,115.65x = 998,520,289.62
  5. Step 5: Solve for x
    x = 998,520,289.62/42,115.65
  6. Step 6: Final answer
    x = 23,709.01

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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.