Home / 40,468.32-55,711.08-30,379.76

Finding the Fourth Proportional to 40,468.32, 55,711.08 and 30,379.76

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Solution

The fourth proportional to 40,468.32, 55,711.08 and 30,379.76 is: 41,822.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,468.32 : 55,711.08 = 30,379.76 : x
  2. Step 2: Convert to fraction form
    40,468.32/55,711.08 = 30,379.76/x
  3. Step 3: Cross multiply
    40,468.32x = 55,711.08 × 30,379.76
  4. Step 4: Simplify right side
    40,468.32x = 1,692,489,239.74
  5. Step 5: Solve for x
    x = 1,692,489,239.74/40,468.32
  6. Step 6: Final answer
    x = 41,822.57

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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.