Home / 21,342.08-32,007.68-8,865.76

Finding the Fourth Proportional to 21,342.08, 32,007.68 and 8,865.76

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Solution

The fourth proportional to 21,342.08, 32,007.68 and 8,865.76 is: 13,296.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,342.08 : 32,007.68 = 8,865.76 : x
  2. Step 2: Convert to fraction form
    21,342.08/32,007.68 = 8,865.76/x
  3. Step 3: Cross multiply
    21,342.08x = 32,007.68 × 8,865.76
  4. Step 4: Simplify right side
    21,342.08x = 283,772,409.04
  5. Step 5: Solve for x
    x = 283,772,409.04/21,342.08
  6. Step 6: Final answer
    x = 13,296.38

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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.