Home / 22,279.15-30,748.31-12,847.51

Finding the Fourth Proportional to 22,279.15, 30,748.31 and 12,847.51

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Solution

The fourth proportional to 22,279.15, 30,748.31 and 12,847.51 is: 17,731.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,279.15 : 30,748.31 = 12,847.51 : x
  2. Step 2: Convert to fraction form
    22,279.15/30,748.31 = 12,847.51/x
  3. Step 3: Cross multiply
    22,279.15x = 30,748.31 × 12,847.51
  4. Step 4: Simplify right side
    22,279.15x = 395,039,220.21
  5. Step 5: Solve for x
    x = 395,039,220.21/22,279.15
  6. Step 6: Final answer
    x = 17,731.34

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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.