Home / 40,145.76-55,408.08-23,146.92

Finding the Fourth Proportional to 40,145.76, 55,408.08 and 23,146.92

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Solution

The fourth proportional to 40,145.76, 55,408.08 and 23,146.92 is: 31,946.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,145.76 : 55,408.08 = 23,146.92 : x
  2. Step 2: Convert to fraction form
    40,145.76/55,408.08 = 23,146.92/x
  3. Step 3: Cross multiply
    40,145.76x = 55,408.08 × 23,146.92
  4. Step 4: Simplify right side
    40,145.76x = 1,282,526,395.11
  5. Step 5: Solve for x
    x = 1,282,526,395.11/40,145.76
  6. Step 6: Final answer
    x = 31,946.75

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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.