Home / 42,481.04-63,717.44-12,899.12

Finding the Fourth Proportional to 42,481.04, 63,717.44 and 12,899.12

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Solution

The fourth proportional to 42,481.04, 63,717.44 and 12,899.12 is: 19,347.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,481.04 : 63,717.44 = 12,899.12 : x
  2. Step 2: Convert to fraction form
    42,481.04/63,717.44 = 12,899.12/x
  3. Step 3: Cross multiply
    42,481.04x = 63,717.44 × 12,899.12
  4. Step 4: Simplify right side
    42,481.04x = 821,898,521.57
  5. Step 5: Solve for x
    x = 821,898,521.57/42,481.04
  6. Step 6: Final answer
    x = 19,347.42

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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.