Home / 28,955.26-43,445.04-12,318.87

Finding the Fourth Proportional to 28,955.26, 43,445.04 and 12,318.87

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Solution

The fourth proportional to 28,955.26, 43,445.04 and 12,318.87 is: 18,483.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,955.26 : 43,445.04 = 12,318.87 : x
  2. Step 2: Convert to fraction form
    28,955.26/43,445.04 = 12,318.87/x
  3. Step 3: Cross multiply
    28,955.26x = 43,445.04 × 12,318.87
  4. Step 4: Simplify right side
    28,955.26x = 535,193,799.90
  5. Step 5: Solve for x
    x = 535,193,799.90/28,955.26
  6. Step 6: Final answer
    x = 18,483.47

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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.