Home / 25,785.84-38,642.24-10,979.84

Finding the Fourth Proportional to 25,785.84, 38,642.24 and 10,979.84

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Solution

The fourth proportional to 25,785.84, 38,642.24 and 10,979.84 is: 16,454.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,785.84 : 38,642.24 = 10,979.84 : x
  2. Step 2: Convert to fraction form
    25,785.84/38,642.24 = 10,979.84/x
  3. Step 3: Cross multiply
    25,785.84x = 38,642.24 × 10,979.84
  4. Step 4: Simplify right side
    25,785.84x = 424,285,612.44
  5. Step 5: Solve for x
    x = 424,285,612.44/25,785.84
  6. Step 6: Final answer
    x = 16,454.21

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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.