Home / 20,752.21-28,637.91-11,799.71

Finding the Fourth Proportional to 20,752.21, 28,637.91 and 11,799.71

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Solution

The fourth proportional to 20,752.21, 28,637.91 and 11,799.71 is: 16,283.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,752.21 : 28,637.91 = 11,799.71 : x
  2. Step 2: Convert to fraction form
    20,752.21/28,637.91 = 11,799.71/x
  3. Step 3: Cross multiply
    20,752.21x = 28,637.91 × 11,799.71
  4. Step 4: Simplify right side
    20,752.21x = 337,919,094.37
  5. Step 5: Solve for x
    x = 337,919,094.37/20,752.21
  6. Step 6: Final answer
    x = 16,283.52

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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.