Home / 22,149.74-30,566.07-12,078.20

Finding the Fourth Proportional to 22,149.74, 30,566.07 and 12,078.20

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Solution

The fourth proportional to 22,149.74, 30,566.07 and 12,078.20 is: 16,667.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,149.74 : 30,566.07 = 12,078.20 : x
  2. Step 2: Convert to fraction form
    22,149.74/30,566.07 = 12,078.20/x
  3. Step 3: Cross multiply
    22,149.74x = 30,566.07 × 12,078.20
  4. Step 4: Simplify right side
    22,149.74x = 369,182,953.84
  5. Step 5: Solve for x
    x = 369,182,953.84/22,149.74
  6. Step 6: Final answer
    x = 16,667.60

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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.