Home / 42,168.96-63,253.44-18,499.68

Finding the Fourth Proportional to 42,168.96, 63,253.44 and 18,499.68

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Solution

The fourth proportional to 42,168.96, 63,253.44 and 18,499.68 is: 27,749.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,168.96 : 63,253.44 = 18,499.68 : x
  2. Step 2: Convert to fraction form
    42,168.96/63,253.44 = 18,499.68/x
  3. Step 3: Cross multiply
    42,168.96x = 63,253.44 × 18,499.68
  4. Step 4: Simplify right side
    42,168.96x = 1,170,168,398.90
  5. Step 5: Solve for x
    x = 1,170,168,398.90/42,168.96
  6. Step 6: Final answer
    x = 27,749.52

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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.