Home / 42,481.02-63,721.54-12,898.74

Finding the Fourth Proportional to 42,481.02, 63,721.54 and 12,898.74

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Solution

The fourth proportional to 42,481.02, 63,721.54 and 12,898.74 is: 19,348.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,481.02 : 63,721.54 = 12,898.74 : x
  2. Step 2: Convert to fraction form
    42,481.02/63,721.54 = 12,898.74/x
  3. Step 3: Cross multiply
    42,481.02x = 63,721.54 × 12,898.74
  4. Step 4: Simplify right side
    42,481.02x = 821,927,576.86
  5. Step 5: Solve for x
    x = 821,927,576.86/42,481.02
  6. Step 6: Final answer
    x = 19,348.11

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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.