Home / 22,360.12-30,857.74-12,289.48

Finding the Fourth Proportional to 22,360.12, 30,857.74 and 12,289.48

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Solution

The fourth proportional to 22,360.12, 30,857.74 and 12,289.48 is: 16,959.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,360.12 : 30,857.74 = 12,289.48 : x
  2. Step 2: Convert to fraction form
    22,360.12/30,857.74 = 12,289.48/x
  3. Step 3: Cross multiply
    22,360.12x = 30,857.74 × 12,289.48
  4. Step 4: Simplify right side
    22,360.12x = 379,225,578.58
  5. Step 5: Solve for x
    x = 379,225,578.58/22,360.12
  6. Step 6: Final answer
    x = 16,959.91

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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.