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Finding the Fourth Proportional to 21,775.32, 32,662.98 and 15,538.27

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Solution

The fourth proportional to 21,775.32, 32,662.98 and 15,538.27 is: 23,307.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,775.32 : 32,662.98 = 15,538.27 : x
  2. Step 2: Convert to fraction form
    21,775.32/32,662.98 = 15,538.27/x
  3. Step 3: Cross multiply
    21,775.32x = 32,662.98 × 15,538.27
  4. Step 4: Simplify right side
    21,775.32x = 507,526,202.24
  5. Step 5: Solve for x
    x = 507,526,202.24/21,775.32
  6. Step 6: Final answer
    x = 23,307.41

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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.