Home / 28,877.40-43,312.24-9,157.96

Finding the Fourth Proportional to 28,877.40, 43,312.24 and 9,157.96

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Solution

The fourth proportional to 28,877.40, 43,312.24 and 9,157.96 is: 13,735.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,877.40 : 43,312.24 = 9,157.96 : x
  2. Step 2: Convert to fraction form
    28,877.40/43,312.24 = 9,157.96/x
  3. Step 3: Cross multiply
    28,877.40x = 43,312.24 × 9,157.96
  4. Step 4: Simplify right side
    28,877.40x = 396,651,761.43
  5. Step 5: Solve for x
    x = 396,651,761.43/28,877.40
  6. Step 6: Final answer
    x = 13,735.72

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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.