Home / 40,370.72-60,479.88-20,661.76

Finding the Fourth Proportional to 40,370.72, 60,479.88 and 20,661.76

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Solution

The fourth proportional to 40,370.72, 60,479.88 and 20,661.76 is: 30,953.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,370.72 : 60,479.88 = 20,661.76 : x
  2. Step 2: Convert to fraction form
    40,370.72/60,479.88 = 20,661.76/x
  3. Step 3: Cross multiply
    40,370.72x = 60,479.88 × 20,661.76
  4. Step 4: Simplify right side
    40,370.72x = 1,249,620,765.39
  5. Step 5: Solve for x
    x = 1,249,620,765.39/40,370.72
  6. Step 6: Final answer
    x = 30,953.64

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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.