Home / 28,445.67-42,650.19-11,817.18

Finding the Fourth Proportional to 28,445.67, 42,650.19 and 11,817.18

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Solution

The fourth proportional to 28,445.67, 42,650.19 and 11,817.18 is: 17,718.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,445.67 : 42,650.19 = 11,817.18 : x
  2. Step 2: Convert to fraction form
    28,445.67/42,650.19 = 11,817.18/x
  3. Step 3: Cross multiply
    28,445.67x = 42,650.19 × 11,817.18
  4. Step 4: Simplify right side
    28,445.67x = 504,004,972.26
  5. Step 5: Solve for x
    x = 504,004,972.26/28,445.67
  6. Step 6: Final answer
    x = 17,718.16

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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.