Home / 42,841.76-64,256.04-11,679.44

Finding the Fourth Proportional to 42,841.76, 64,256.04 and 11,679.44

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Solution

The fourth proportional to 42,841.76, 64,256.04 and 11,679.44 is: 17,517.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,841.76 : 64,256.04 = 11,679.44 : x
  2. Step 2: Convert to fraction form
    42,841.76/64,256.04 = 11,679.44/x
  3. Step 3: Cross multiply
    42,841.76x = 64,256.04 × 11,679.44
  4. Step 4: Simplify right side
    42,841.76x = 750,474,563.82
  5. Step 5: Solve for x
    x = 750,474,563.82/42,841.76
  6. Step 6: Final answer
    x = 17,517.36

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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.