Home / 40,119.94-55,307.82-28,146.16

Finding the Fourth Proportional to 40,119.94, 55,307.82 and 28,146.16

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Solution

The fourth proportional to 40,119.94, 55,307.82 and 28,146.16 is: 38,801.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,119.94 : 55,307.82 = 28,146.16 : x
  2. Step 2: Convert to fraction form
    40,119.94/55,307.82 = 28,146.16/x
  3. Step 3: Cross multiply
    40,119.94x = 55,307.82 × 28,146.16
  4. Step 4: Simplify right side
    40,119.94x = 1,556,702,750.97
  5. Step 5: Solve for x
    x = 1,556,702,750.97/40,119.94
  6. Step 6: Final answer
    x = 38,801.22

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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.