Home / 27,810.70-41,688.16-13,780.92

Finding the Fourth Proportional to 27,810.70, 41,688.16 and 13,780.92

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Solution

The fourth proportional to 27,810.70, 41,688.16 and 13,780.92 is: 20,657.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,810.70 : 41,688.16 = 13,780.92 : x
  2. Step 2: Convert to fraction form
    27,810.70/41,688.16 = 13,780.92/x
  3. Step 3: Cross multiply
    27,810.70x = 41,688.16 × 13,780.92
  4. Step 4: Simplify right side
    27,810.70x = 574,501,241.78
  5. Step 5: Solve for x
    x = 574,501,241.78/27,810.70
  6. Step 6: Final answer
    x = 20,657.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.