Home / 21,608.55-29,833.56-17,639.10

Finding the Fourth Proportional to 21,608.55, 29,833.56 and 17,639.10

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Solution

The fourth proportional to 21,608.55, 29,833.56 and 17,639.10 is: 24,353.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,608.55 : 29,833.56 = 17,639.10 : x
  2. Step 2: Convert to fraction form
    21,608.55/29,833.56 = 17,639.10/x
  3. Step 3: Cross multiply
    21,608.55x = 29,833.56 × 17,639.10
  4. Step 4: Simplify right side
    21,608.55x = 526,237,148.20
  5. Step 5: Solve for x
    x = 526,237,148.20/21,608.55
  6. Step 6: Final answer
    x = 24,353.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.