Home / 25,785.59-38,641.88-10,979.60

Finding the Fourth Proportional to 25,785.59, 38,641.88 and 10,979.60

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Solution

The fourth proportional to 25,785.59, 38,641.88 and 10,979.60 is: 16,453.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,785.59 : 38,641.88 = 10,979.60 : x
  2. Step 2: Convert to fraction form
    25,785.59/38,641.88 = 10,979.60/x
  3. Step 3: Cross multiply
    25,785.59x = 38,641.88 × 10,979.60
  4. Step 4: Simplify right side
    25,785.59x = 424,272,137.54
  5. Step 5: Solve for x
    x = 424,272,137.54/25,785.59
  6. Step 6: Final answer
    x = 16,453.85

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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.