Home / 38,123.84-57,189.60-13,163.20

Finding the Fourth Proportional to 38,123.84, 57,189.60 and 13,163.20

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Solution

The fourth proportional to 38,123.84, 57,189.60 and 13,163.20 is: 19,746.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,123.84 : 57,189.60 = 13,163.20 : x
  2. Step 2: Convert to fraction form
    38,123.84/57,189.60 = 13,163.20/x
  3. Step 3: Cross multiply
    38,123.84x = 57,189.60 × 13,163.20
  4. Step 4: Simplify right side
    38,123.84x = 752,798,142.72
  5. Step 5: Solve for x
    x = 752,798,142.72/38,123.84
  6. Step 6: Final answer
    x = 19,746.13

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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.