Home / 20,500.54-28,292.38-11,547.48

Finding the Fourth Proportional to 20,500.54, 28,292.38 and 11,547.48

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Solution

The fourth proportional to 20,500.54, 28,292.38 and 11,547.48 is: 15,936.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,500.54 : 28,292.38 = 11,547.48 : x
  2. Step 2: Convert to fraction form
    20,500.54/28,292.38 = 11,547.48/x
  3. Step 3: Cross multiply
    20,500.54x = 28,292.38 × 11,547.48
  4. Step 4: Simplify right side
    20,500.54x = 326,705,692.20
  5. Step 5: Solve for x
    x = 326,705,692.20/20,500.54
  6. Step 6: Final answer
    x = 15,936.44

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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.