Home / 25,266.11-34,880.90-15,196.80

Finding the Fourth Proportional to 25,266.11, 34,880.90 and 15,196.80

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Solution

The fourth proportional to 25,266.11, 34,880.90 and 15,196.80 is: 20,979.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,266.11 : 34,880.90 = 15,196.80 : x
  2. Step 2: Convert to fraction form
    25,266.11/34,880.90 = 15,196.80/x
  3. Step 3: Cross multiply
    25,266.11x = 34,880.90 × 15,196.80
  4. Step 4: Simplify right side
    25,266.11x = 530,077,810.73
  5. Step 5: Solve for x
    x = 530,077,810.73/25,266.11
  6. Step 6: Final answer
    x = 20,979.80

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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.