Home / 38,133.78-57,199.86-10,431.78

Finding the Fourth Proportional to 38,133.78, 57,199.86 and 10,431.78

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Solution

The fourth proportional to 38,133.78, 57,199.86 and 10,431.78 is: 15,647.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,133.78 : 57,199.86 = 10,431.78 : x
  2. Step 2: Convert to fraction form
    38,133.78/57,199.86 = 10,431.78/x
  3. Step 3: Cross multiply
    38,133.78x = 57,199.86 × 10,431.78
  4. Step 4: Simplify right side
    38,133.78x = 596,696,355.55
  5. Step 5: Solve for x
    x = 596,696,355.55/38,133.78
  6. Step 6: Final answer
    x = 15,647.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.