Home / 27,685.86-38,206.92-15,749.29

Finding the Fourth Proportional to 27,685.86, 38,206.92 and 15,749.29

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Solution

The fourth proportional to 27,685.86, 38,206.92 and 15,749.29 is: 21,734.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,685.86 : 38,206.92 = 15,749.29 : x
  2. Step 2: Convert to fraction form
    27,685.86/38,206.92 = 15,749.29/x
  3. Step 3: Cross multiply
    27,685.86x = 38,206.92 × 15,749.29
  4. Step 4: Simplify right side
    27,685.86x = 601,731,863.09
  5. Step 5: Solve for x
    x = 601,731,863.09/27,685.86
  6. Step 6: Final answer
    x = 21,734.27

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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.