Home / 21,516.60-32,278.14-6,722.32

Finding the Fourth Proportional to 21,516.60, 32,278.14 and 6,722.32

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Solution

The fourth proportional to 21,516.60, 32,278.14 and 6,722.32 is: 10,084.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,516.60 : 32,278.14 = 6,722.32 : x
  2. Step 2: Convert to fraction form
    21,516.60/32,278.14 = 6,722.32/x
  3. Step 3: Cross multiply
    21,516.60x = 32,278.14 × 6,722.32
  4. Step 4: Simplify right side
    21,516.60x = 216,983,986.08
  5. Step 5: Solve for x
    x = 216,983,986.08/21,516.60
  6. Step 6: Final answer
    x = 10,084.49

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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.