Home / 21,806.50-32,721.56-16,885.75

Finding the Fourth Proportional to 21,806.50, 32,721.56 and 16,885.75

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Solution

The fourth proportional to 21,806.50, 32,721.56 and 16,885.75 is: 25,337.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,806.50 : 32,721.56 = 16,885.75 : x
  2. Step 2: Convert to fraction form
    21,806.50/32,721.56 = 16,885.75/x
  3. Step 3: Cross multiply
    21,806.50x = 32,721.56 × 16,885.75
  4. Step 4: Simplify right side
    21,806.50x = 552,528,081.77
  5. Step 5: Solve for x
    x = 552,528,081.77/21,806.50
  6. Step 6: Final answer
    x = 25,337.77

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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.