Home / 21,724.32-32,564.28-8,558.58

Finding the Fourth Proportional to 21,724.32, 32,564.28 and 8,558.58

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Solution

The fourth proportional to 21,724.32, 32,564.28 and 8,558.58 is: 12,829.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,724.32 : 32,564.28 = 8,558.58 : x
  2. Step 2: Convert to fraction form
    21,724.32/32,564.28 = 8,558.58/x
  3. Step 3: Cross multiply
    21,724.32x = 32,564.28 × 8,558.58
  4. Step 4: Simplify right side
    21,724.32x = 278,703,995.52
  5. Step 5: Solve for x
    x = 278,703,995.52/21,724.32
  6. Step 6: Final answer
    x = 12,829.12

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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.