Home / 22,180.90-30,612.73-12,749.26

Finding the Fourth Proportional to 22,180.90, 30,612.73 and 12,749.26

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Solution

The fourth proportional to 22,180.90, 30,612.73 and 12,749.26 is: 17,595.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,180.90 : 30,612.73 = 12,749.26 : x
  2. Step 2: Convert to fraction form
    22,180.90/30,612.73 = 12,749.26/x
  3. Step 3: Cross multiply
    22,180.90x = 30,612.73 × 12,749.26
  4. Step 4: Simplify right side
    22,180.90x = 390,289,654.08
  5. Step 5: Solve for x
    x = 390,289,654.08/22,180.90
  6. Step 6: Final answer
    x = 17,595.75

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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.