Home / 42,214.32-63,324.48-12,629.76

Finding the Fourth Proportional to 42,214.32, 63,324.48 and 12,629.76

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Solution

The fourth proportional to 42,214.32, 63,324.48 and 12,629.76 is: 18,945.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,214.32 : 63,324.48 = 12,629.76 : x
  2. Step 2: Convert to fraction form
    42,214.32/63,324.48 = 12,629.76/x
  3. Step 3: Cross multiply
    42,214.32x = 63,324.48 × 12,629.76
  4. Step 4: Simplify right side
    42,214.32x = 799,772,984.52
  5. Step 5: Solve for x
    x = 799,772,984.52/42,214.32
  6. Step 6: Final answer
    x = 18,945.54

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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.