Home / 42,836.85-64,255.26-11,672.10

Finding the Fourth Proportional to 42,836.85, 64,255.26 and 11,672.10

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Solution

The fourth proportional to 42,836.85, 64,255.26 and 11,672.10 is: 17,508.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,836.85 : 64,255.26 = 11,672.10 : x
  2. Step 2: Convert to fraction form
    42,836.85/64,255.26 = 11,672.10/x
  3. Step 3: Cross multiply
    42,836.85x = 64,255.26 × 11,672.10
  4. Step 4: Simplify right side
    42,836.85x = 749,993,820.25
  5. Step 5: Solve for x
    x = 749,993,820.25/42,836.85
  6. Step 6: Final answer
    x = 17,508.15

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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.