Home / 25,479.33-38,047.43-20,808.62

Finding the Fourth Proportional to 25,479.33, 38,047.43 and 20,808.62

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Solution

The fourth proportional to 25,479.33, 38,047.43 and 20,808.62 is: 31,072.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,479.33 : 38,047.43 = 20,808.62 : x
  2. Step 2: Convert to fraction form
    25,479.33/38,047.43 = 20,808.62/x
  3. Step 3: Cross multiply
    25,479.33x = 38,047.43 × 20,808.62
  4. Step 4: Simplify right side
    25,479.33x = 791,714,218.57
  5. Step 5: Solve for x
    x = 791,714,218.57/25,479.33
  6. Step 6: Final answer
    x = 31,072.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.