Home / 36,139.28-49,837.21-28,178.60

Finding the Fourth Proportional to 36,139.28, 49,837.21 and 28,178.60

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Solution

The fourth proportional to 36,139.28, 49,837.21 and 28,178.60 is: 38,859.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,139.28 : 49,837.21 = 28,178.60 : x
  2. Step 2: Convert to fraction form
    36,139.28/49,837.21 = 28,178.60/x
  3. Step 3: Cross multiply
    36,139.28x = 49,837.21 × 28,178.60
  4. Step 4: Simplify right side
    36,139.28x = 1,404,342,486.07
  5. Step 5: Solve for x
    x = 1,404,342,486.07/36,139.28
  6. Step 6: Final answer
    x = 38,859.18

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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.