Home / 21,607.55-29,832.18-17,638.10

Finding the Fourth Proportional to 21,607.55, 29,832.18 and 17,638.10

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Solution

The fourth proportional to 21,607.55, 29,832.18 and 17,638.10 is: 24,351.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,607.55 : 29,832.18 = 17,638.10 : x
  2. Step 2: Convert to fraction form
    21,607.55/29,832.18 = 17,638.10/x
  3. Step 3: Cross multiply
    21,607.55x = 29,832.18 × 17,638.10
  4. Step 4: Simplify right side
    21,607.55x = 526,182,974.06
  5. Step 5: Solve for x
    x = 526,182,974.06/21,607.55
  6. Step 6: Final answer
    x = 24,351.81

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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.