Home / 28,948.16-43,425.36-9,219.80

Finding the Fourth Proportional to 28,948.16, 43,425.36 and 9,219.80

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Solution

The fourth proportional to 28,948.16, 43,425.36 and 9,219.80 is: 13,830.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,948.16 : 43,425.36 = 9,219.80 : x
  2. Step 2: Convert to fraction form
    28,948.16/43,425.36 = 9,219.80/x
  3. Step 3: Cross multiply
    28,948.16x = 43,425.36 × 9,219.80
  4. Step 4: Simplify right side
    28,948.16x = 400,373,134.13
  5. Step 5: Solve for x
    x = 400,373,134.13/28,948.16
  6. Step 6: Final answer
    x = 13,830.69

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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.