Home / 20,337.63-28,046.22-15,859.75

Finding the Fourth Proportional to 20,337.63, 28,046.22 and 15,859.75

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Solution

The fourth proportional to 20,337.63, 28,046.22 and 15,859.75 is: 21,871.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,337.63 : 28,046.22 = 15,859.75 : x
  2. Step 2: Convert to fraction form
    20,337.63/28,046.22 = 15,859.75/x
  3. Step 3: Cross multiply
    20,337.63x = 28,046.22 × 15,859.75
  4. Step 4: Simplify right side
    20,337.63x = 444,805,960.64
  5. Step 5: Solve for x
    x = 444,805,960.64/20,337.63
  6. Step 6: Final answer
    x = 21,871.08

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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.