Home / 21,521.44-32,285.50-10,985.76

Finding the Fourth Proportional to 21,521.44, 32,285.50 and 10,985.76

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Solution

The fourth proportional to 21,521.44, 32,285.50 and 10,985.76 is: 16,480.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,521.44 : 32,285.50 = 10,985.76 : x
  2. Step 2: Convert to fraction form
    21,521.44/32,285.50 = 10,985.76/x
  3. Step 3: Cross multiply
    21,521.44x = 32,285.50 × 10,985.76
  4. Step 4: Simplify right side
    21,521.44x = 354,680,593.05
  5. Step 5: Solve for x
    x = 354,680,593.05/21,521.44
  6. Step 6: Final answer
    x = 16,480.34

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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.