Home / 28,902.10-43,357.28-8,913.27

Finding the Fourth Proportional to 28,902.10, 43,357.28 and 8,913.27

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Solution

The fourth proportional to 28,902.10, 43,357.28 and 8,913.27 is: 13,371.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,902.10 : 43,357.28 = 8,913.27 : x
  2. Step 2: Convert to fraction form
    28,902.10/43,357.28 = 8,913.27/x
  3. Step 3: Cross multiply
    28,902.10x = 43,357.28 × 8,913.27
  4. Step 4: Simplify right side
    28,902.10x = 386,455,261.13
  5. Step 5: Solve for x
    x = 386,455,261.13/28,902.10
  6. Step 6: Final answer
    x = 13,371.18

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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.