Home / 21,812.83-32,703.35-9,960.20

Finding the Fourth Proportional to 21,812.83, 32,703.35 and 9,960.20

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Solution

The fourth proportional to 21,812.83, 32,703.35 and 9,960.20 is: 14,933.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,812.83 : 32,703.35 = 9,960.20 : x
  2. Step 2: Convert to fraction form
    21,812.83/32,703.35 = 9,960.20/x
  3. Step 3: Cross multiply
    21,812.83x = 32,703.35 × 9,960.20
  4. Step 4: Simplify right side
    21,812.83x = 325,731,815.99
  5. Step 5: Solve for x
    x = 325,731,815.99/21,812.83
  6. Step 6: Final answer
    x = 14,933.04

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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.