Home / 40,778.24-61,176.16-12,697.72

Finding the Fourth Proportional to 40,778.24, 61,176.16 and 12,697.72

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Solution

The fourth proportional to 40,778.24, 61,176.16 and 12,697.72 is: 19,049.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,778.24 : 61,176.16 = 12,697.72 : x
  2. Step 2: Convert to fraction form
    40,778.24/61,176.16 = 12,697.72/x
  3. Step 3: Cross multiply
    40,778.24x = 61,176.16 × 12,697.72
  4. Step 4: Simplify right side
    40,778.24x = 776,797,750.36
  5. Step 5: Solve for x
    x = 776,797,750.36/40,778.24
  6. Step 6: Final answer
    x = 19,049.32

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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.