Home / 28,913.64-43,358.22-9,186.90

Finding the Fourth Proportional to 28,913.64, 43,358.22 and 9,186.90

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Solution

The fourth proportional to 28,913.64, 43,358.22 and 9,186.90 is: 13,776.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,913.64 : 43,358.22 = 9,186.90 : x
  2. Step 2: Convert to fraction form
    28,913.64/43,358.22 = 9,186.90/x
  3. Step 3: Cross multiply
    28,913.64x = 43,358.22 × 9,186.90
  4. Step 4: Simplify right side
    28,913.64x = 398,327,631.32
  5. Step 5: Solve for x
    x = 398,327,631.32/28,913.64
  6. Step 6: Final answer
    x = 13,776.46

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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.