Home / 40,381.39-55,729.34-23,390.20

Finding the Fourth Proportional to 40,381.39, 55,729.34 and 23,390.20

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Solution

The fourth proportional to 40,381.39, 55,729.34 and 23,390.20 is: 32,280.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,381.39 : 55,729.34 = 23,390.20 : x
  2. Step 2: Convert to fraction form
    40,381.39/55,729.34 = 23,390.20/x
  3. Step 3: Cross multiply
    40,381.39x = 55,729.34 × 23,390.20
  4. Step 4: Simplify right side
    40,381.39x = 1,303,520,408.47
  5. Step 5: Solve for x
    x = 1,303,520,408.47/40,381.39
  6. Step 6: Final answer
    x = 32,280.23

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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.