Home / 21,607.75-32,359.38-10,486.86

Finding the Fourth Proportional to 21,607.75, 32,359.38 and 10,486.86

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Solution

The fourth proportional to 21,607.75, 32,359.38 and 10,486.86 is: 15,704.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,607.75 : 32,359.38 = 10,486.86 : x
  2. Step 2: Convert to fraction form
    21,607.75/32,359.38 = 10,486.86/x
  3. Step 3: Cross multiply
    21,607.75x = 32,359.38 × 10,486.86
  4. Step 4: Simplify right side
    21,607.75x = 339,348,287.75
  5. Step 5: Solve for x
    x = 339,348,287.75/21,607.75
  6. Step 6: Final answer
    x = 15,704.93

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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.