Home / 22,405.19-30,918.51-12,844.76

Finding the Fourth Proportional to 22,405.19, 30,918.51 and 12,844.76

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Solution

The fourth proportional to 22,405.19, 30,918.51 and 12,844.76 is: 17,725.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,405.19 : 30,918.51 = 12,844.76 : x
  2. Step 2: Convert to fraction form
    22,405.19/30,918.51 = 12,844.76/x
  3. Step 3: Cross multiply
    22,405.19x = 30,918.51 × 12,844.76
  4. Step 4: Simplify right side
    22,405.19x = 397,140,685.92
  5. Step 5: Solve for x
    x = 397,140,685.92/22,405.19
  6. Step 6: Final answer
    x = 17,725.39

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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.