Home / 40,378.16-55,722.64-22,473.92

Finding the Fourth Proportional to 40,378.16, 55,722.64 and 22,473.92

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Solution

The fourth proportional to 40,378.16, 55,722.64 and 22,473.92 is: 31,014.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,378.16 : 55,722.64 = 22,473.92 : x
  2. Step 2: Convert to fraction form
    40,378.16/55,722.64 = 22,473.92/x
  3. Step 3: Cross multiply
    40,378.16x = 55,722.64 × 22,473.92
  4. Step 4: Simplify right side
    40,378.16x = 1,252,306,153.55
  5. Step 5: Solve for x
    x = 1,252,306,153.55/40,378.16
  6. Step 6: Final answer
    x = 31,014.44

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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.