Home / 20,290.74-30,439.71-9,196.98

Finding the Fourth Proportional to 20,290.74, 30,439.71 and 9,196.98

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Solution

The fourth proportional to 20,290.74, 30,439.71 and 9,196.98 is: 13,797.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,290.74 : 30,439.71 = 9,196.98 : x
  2. Step 2: Convert to fraction form
    20,290.74/30,439.71 = 9,196.98/x
  3. Step 3: Cross multiply
    20,290.74x = 30,439.71 × 9,196.98
  4. Step 4: Simplify right side
    20,290.74x = 279,953,404.08
  5. Step 5: Solve for x
    x = 279,953,404.08/20,290.74
  6. Step 6: Final answer
    x = 13,797.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.