Home / 31,705.20-43,774.56-28,337.22

Finding the Fourth Proportional to 31,705.20, 43,774.56 and 28,337.22

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Solution

The fourth proportional to 31,705.20, 43,774.56 and 28,337.22 is: 39,124.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,705.20 : 43,774.56 = 28,337.22 : x
  2. Step 2: Convert to fraction form
    31,705.20/43,774.56 = 28,337.22/x
  3. Step 3: Cross multiply
    31,705.20x = 43,774.56 × 28,337.22
  4. Step 4: Simplify right side
    31,705.20x = 1,240,449,337.12
  5. Step 5: Solve for x
    x = 1,240,449,337.12/31,705.20
  6. Step 6: Final answer
    x = 39,124.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.