Home / 21,489.71-32,196.44-18,337.69

Finding the Fourth Proportional to 21,489.71, 32,196.44 and 18,337.69

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Solution

The fourth proportional to 21,489.71, 32,196.44 and 18,337.69 is: 27,474.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,489.71 : 32,196.44 = 18,337.69 : x
  2. Step 2: Convert to fraction form
    21,489.71/32,196.44 = 18,337.69/x
  3. Step 3: Cross multiply
    21,489.71x = 32,196.44 × 18,337.69
  4. Step 4: Simplify right side
    21,489.71x = 590,408,318.76
  5. Step 5: Solve for x
    x = 590,408,318.76/21,489.71
  6. Step 6: Final answer
    x = 27,474.01

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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.