Home / 25,381.47-38,074.74-8,739.30

Finding the Fourth Proportional to 25,381.47, 38,074.74 and 8,739.30

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Solution

The fourth proportional to 25,381.47, 38,074.74 and 8,739.30 is: 13,109.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,381.47 : 38,074.74 = 8,739.30 : x
  2. Step 2: Convert to fraction form
    25,381.47/38,074.74 = 8,739.30/x
  3. Step 3: Cross multiply
    25,381.47x = 38,074.74 × 8,739.30
  4. Step 4: Simplify right side
    25,381.47x = 332,746,575.28
  5. Step 5: Solve for x
    x = 332,746,575.28/25,381.47
  6. Step 6: Final answer
    x = 13,109.82

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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.