Home / 21,588.75-32,387.54-9,108.81

Finding the Fourth Proportional to 21,588.75, 32,387.54 and 9,108.81

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Solution

The fourth proportional to 21,588.75, 32,387.54 and 9,108.81 is: 13,665.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,588.75 : 32,387.54 = 9,108.81 : x
  2. Step 2: Convert to fraction form
    21,588.75/32,387.54 = 9,108.81/x
  3. Step 3: Cross multiply
    21,588.75x = 32,387.54 × 9,108.81
  4. Step 4: Simplify right side
    21,588.75x = 295,011,902.68
  5. Step 5: Solve for x
    x = 295,011,902.68/21,588.75
  6. Step 6: Final answer
    x = 13,665.08

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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.