Home / 28,913.45-43,371.39-9,191.57

Finding the Fourth Proportional to 28,913.45, 43,371.39 and 9,191.57

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Solution

The fourth proportional to 28,913.45, 43,371.39 and 9,191.57 is: 13,787.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,913.45 : 43,371.39 = 9,191.57 : x
  2. Step 2: Convert to fraction form
    28,913.45/43,371.39 = 9,191.57/x
  3. Step 3: Cross multiply
    28,913.45x = 43,371.39 × 9,191.57
  4. Step 4: Simplify right side
    28,913.45x = 398,651,167.18
  5. Step 5: Solve for x
    x = 398,651,167.18/28,913.45
  6. Step 6: Final answer
    x = 13,787.74

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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.