Home / 20,532.08-28,335.23-11,579.39

Finding the Fourth Proportional to 20,532.08, 28,335.23 and 11,579.39

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Solution

The fourth proportional to 20,532.08, 28,335.23 and 11,579.39 is: 15,980.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,532.08 : 28,335.23 = 11,579.39 : x
  2. Step 2: Convert to fraction form
    20,532.08/28,335.23 = 11,579.39/x
  3. Step 3: Cross multiply
    20,532.08x = 28,335.23 × 11,579.39
  4. Step 4: Simplify right side
    20,532.08x = 328,104,479.34
  5. Step 5: Solve for x
    x = 328,104,479.34/20,532.08
  6. Step 6: Final answer
    x = 15,980.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.