Home / 28,609.16-42,902.22-9,886.28

Finding the Fourth Proportional to 28,609.16, 42,902.22 and 9,886.28

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Solution

The fourth proportional to 28,609.16, 42,902.22 and 9,886.28 is: 14,825.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,609.16 : 42,902.22 = 9,886.28 : x
  2. Step 2: Convert to fraction form
    28,609.16/42,902.22 = 9,886.28/x
  3. Step 3: Cross multiply
    28,609.16x = 42,902.22 × 9,886.28
  4. Step 4: Simplify right side
    28,609.16x = 424,143,359.54
  5. Step 5: Solve for x
    x = 424,143,359.54/28,609.16
  6. Step 6: Final answer
    x = 14,825.44

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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.