Home / 31,445.82-47,184.96-13,928.04

Finding the Fourth Proportional to 31,445.82, 47,184.96 and 13,928.04

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Solution

The fourth proportional to 31,445.82, 47,184.96 and 13,928.04 is: 20,899.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,445.82 : 47,184.96 = 13,928.04 : x
  2. Step 2: Convert to fraction form
    31,445.82/47,184.96 = 13,928.04/x
  3. Step 3: Cross multiply
    31,445.82x = 47,184.96 × 13,928.04
  4. Step 4: Simplify right side
    31,445.82x = 657,194,010.28
  5. Step 5: Solve for x
    x = 657,194,010.28/31,445.82
  6. Step 6: Final answer
    x = 20,899.25

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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.