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Finding the Fourth Proportional to 20,256.86, 27,947.03 and 12,703.51

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Solution

The fourth proportional to 20,256.86, 27,947.03 and 12,703.51 is: 17,526.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.86 : 27,947.03 = 12,703.51 : x
  2. Step 2: Convert to fraction form
    20,256.86/27,947.03 = 12,703.51/x
  3. Step 3: Cross multiply
    20,256.86x = 27,947.03 × 12,703.51
  4. Step 4: Simplify right side
    20,256.86x = 355,025,375.08
  5. Step 5: Solve for x
    x = 355,025,375.08/20,256.86
  6. Step 6: Final answer
    x = 17,526.18

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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.