Home / 40,680.08-56,138.52-22,775.12

Finding the Fourth Proportional to 40,680.08, 56,138.52 and 22,775.12

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Solution

The fourth proportional to 40,680.08, 56,138.52 and 22,775.12 is: 31,429.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,680.08 : 56,138.52 = 22,775.12 : x
  2. Step 2: Convert to fraction form
    40,680.08/56,138.52 = 22,775.12/x
  3. Step 3: Cross multiply
    40,680.08x = 56,138.52 × 22,775.12
  4. Step 4: Simplify right side
    40,680.08x = 1,278,561,529.62
  5. Step 5: Solve for x
    x = 1,278,561,529.62/40,680.08
  6. Step 6: Final answer
    x = 31,429.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.