Home / 28,863.48-43,302.86-9,142.36

Finding the Fourth Proportional to 28,863.48, 43,302.86 and 9,142.36

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Solution

The fourth proportional to 28,863.48, 43,302.86 and 9,142.36 is: 13,715.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,863.48 : 43,302.86 = 9,142.36 : x
  2. Step 2: Convert to fraction form
    28,863.48/43,302.86 = 9,142.36/x
  3. Step 3: Cross multiply
    28,863.48x = 43,302.86 × 9,142.36
  4. Step 4: Simplify right side
    28,863.48x = 395,890,335.15
  5. Step 5: Solve for x
    x = 395,890,335.15/28,863.48
  6. Step 6: Final answer
    x = 13,715.96

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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.