Home / 40,658.28-60,987.42-12,958.44

Finding the Fourth Proportional to 40,658.28, 60,987.42 and 12,958.44

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Solution

The fourth proportional to 40,658.28, 60,987.42 and 12,958.44 is: 19,437.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,658.28 : 60,987.42 = 12,958.44 : x
  2. Step 2: Convert to fraction form
    40,658.28/60,987.42 = 12,958.44/x
  3. Step 3: Cross multiply
    40,658.28x = 60,987.42 × 12,958.44
  4. Step 4: Simplify right side
    40,658.28x = 790,301,822.82
  5. Step 5: Solve for x
    x = 790,301,822.82/40,658.28
  6. Step 6: Final answer
    x = 19,437.66

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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.