Home / 42,416.76-63,643.14-21,345.78

Finding the Fourth Proportional to 42,416.76, 63,643.14 and 21,345.78

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Solution

The fourth proportional to 42,416.76, 63,643.14 and 21,345.78 is: 32,027.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,416.76 : 63,643.14 = 21,345.78 : x
  2. Step 2: Convert to fraction form
    42,416.76/63,643.14 = 21,345.78/x
  3. Step 3: Cross multiply
    42,416.76x = 63,643.14 × 21,345.78
  4. Step 4: Simplify right side
    42,416.76x = 1,358,512,464.95
  5. Step 5: Solve for x
    x = 1,358,512,464.95/42,416.76
  6. Step 6: Final answer
    x = 32,027.73

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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.