Home / 20,648.66-28,482.30-17,190.42

Finding the Fourth Proportional to 20,648.66, 28,482.30 and 17,190.42

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Solution

The fourth proportional to 20,648.66, 28,482.30 and 17,190.42 is: 23,712.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,648.66 : 28,482.30 = 17,190.42 : x
  2. Step 2: Convert to fraction form
    20,648.66/28,482.30 = 17,190.42/x
  3. Step 3: Cross multiply
    20,648.66x = 28,482.30 × 17,190.42
  4. Step 4: Simplify right side
    20,648.66x = 489,622,699.57
  5. Step 5: Solve for x
    x = 489,622,699.57/20,648.66
  6. Step 6: Final answer
    x = 23,712.08

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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.