Home / 40,023.29-55,232.32-21,874.38

Finding the Fourth Proportional to 40,023.29, 55,232.32 and 21,874.38

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Solution

The fourth proportional to 40,023.29, 55,232.32 and 21,874.38 is: 30,186.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,023.29 : 55,232.32 = 21,874.38 : x
  2. Step 2: Convert to fraction form
    40,023.29/55,232.32 = 21,874.38/x
  3. Step 3: Cross multiply
    40,023.29x = 55,232.32 × 21,874.38
  4. Step 4: Simplify right side
    40,023.29x = 1,208,172,892.76
  5. Step 5: Solve for x
    x = 1,208,172,892.76/40,023.29
  6. Step 6: Final answer
    x = 30,186.74

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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.