Home / 21,728.62-32,607.52-7,688.58

Finding the Fourth Proportional to 21,728.62, 32,607.52 and 7,688.58

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Solution

The fourth proportional to 21,728.62, 32,607.52 and 7,688.58 is: 11,538.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,728.62 : 32,607.52 = 7,688.58 : x
  2. Step 2: Convert to fraction form
    21,728.62/32,607.52 = 7,688.58/x
  3. Step 3: Cross multiply
    21,728.62x = 32,607.52 × 7,688.58
  4. Step 4: Simplify right side
    21,728.62x = 250,705,526.12
  5. Step 5: Solve for x
    x = 250,705,526.12/21,728.62
  6. Step 6: Final answer
    x = 11,538.04

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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.