Home / 39,177.12-58,775.40-11,475.12

Finding the Fourth Proportional to 39,177.12, 58,775.40 and 11,475.12

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Solution

The fourth proportional to 39,177.12, 58,775.40 and 11,475.12 is: 17,215.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,177.12 : 58,775.40 = 11,475.12 : x
  2. Step 2: Convert to fraction form
    39,177.12/58,775.40 = 11,475.12/x
  3. Step 3: Cross multiply
    39,177.12x = 58,775.40 × 11,475.12
  4. Step 4: Simplify right side
    39,177.12x = 674,454,768.05
  5. Step 5: Solve for x
    x = 674,454,768.05/39,177.12
  6. Step 6: Final answer
    x = 17,215.53

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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.