Home / 31,785.45-47,868.52-28,947.90

Finding the Fourth Proportional to 31,785.45, 47,868.52 and 28,947.90

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Solution

The fourth proportional to 31,785.45, 47,868.52 and 28,947.90 is: 43,595.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,785.45 : 47,868.52 = 28,947.90 : x
  2. Step 2: Convert to fraction form
    31,785.45/47,868.52 = 28,947.90/x
  3. Step 3: Cross multiply
    31,785.45x = 47,868.52 × 28,947.90
  4. Step 4: Simplify right side
    31,785.45x = 1,385,692,900.14
  5. Step 5: Solve for x
    x = 1,385,692,900.14/31,785.45
  6. Step 6: Final answer
    x = 43,595.19

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.