Home / 20,479.02-30,718.52-5,687.94

Finding the Fourth Proportional to 20,479.02, 30,718.52 and 5,687.94

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Solution

The fourth proportional to 20,479.02, 30,718.52 and 5,687.94 is: 8,531.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,479.02 : 30,718.52 = 5,687.94 : x
  2. Step 2: Convert to fraction form
    20,479.02/30,718.52 = 5,687.94/x
  3. Step 3: Cross multiply
    20,479.02x = 30,718.52 × 5,687.94
  4. Step 4: Simplify right side
    20,479.02x = 174,725,098.65
  5. Step 5: Solve for x
    x = 174,725,098.65/20,479.02
  6. Step 6: Final answer
    x = 8,531.91

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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.