Home / 38,082.15-57,128.69-13,115.52

Finding the Fourth Proportional to 38,082.15, 57,128.69 and 13,115.52

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Solution

The fourth proportional to 38,082.15, 57,128.69 and 13,115.52 is: 19,675.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,082.15 : 57,128.69 = 13,115.52 : x
  2. Step 2: Convert to fraction form
    38,082.15/57,128.69 = 13,115.52/x
  3. Step 3: Cross multiply
    38,082.15x = 57,128.69 × 13,115.52
  4. Step 4: Simplify right side
    38,082.15x = 749,272,509.06
  5. Step 5: Solve for x
    x = 749,272,509.06/38,082.15
  6. Step 6: Final answer
    x = 19,675.16

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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.