Home / 38,445.13-57,667.20-31,857.51

Finding the Fourth Proportional to 38,445.13, 57,667.20 and 31,857.51

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Solution

The fourth proportional to 38,445.13, 57,667.20 and 31,857.51 is: 47,785.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,445.13 : 57,667.20 = 31,857.51 : x
  2. Step 2: Convert to fraction form
    38,445.13/57,667.20 = 31,857.51/x
  3. Step 3: Cross multiply
    38,445.13x = 57,667.20 × 31,857.51
  4. Step 4: Simplify right side
    38,445.13x = 1,837,133,400.67
  5. Step 5: Solve for x
    x = 1,837,133,400.67/38,445.13
  6. Step 6: Final answer
    x = 47,785.85

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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.