Home / 21,748.08-30,010.93-12,793.85

Finding the Fourth Proportional to 21,748.08, 30,010.93 and 12,793.85

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Solution

The fourth proportional to 21,748.08, 30,010.93 and 12,793.85 is: 17,654.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,748.08 : 30,010.93 = 12,793.85 : x
  2. Step 2: Convert to fraction form
    21,748.08/30,010.93 = 12,793.85/x
  3. Step 3: Cross multiply
    21,748.08x = 30,010.93 × 12,793.85
  4. Step 4: Simplify right side
    21,748.08x = 383,955,403.81
  5. Step 5: Solve for x
    x = 383,955,403.81/21,748.08
  6. Step 6: Final answer
    x = 17,654.68

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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.