Home / 25,839.58-38,758.59-7,120.74

Finding the Fourth Proportional to 25,839.58, 38,758.59 and 7,120.74

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Solution

The fourth proportional to 25,839.58, 38,758.59 and 7,120.74 is: 10,680.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,839.58 : 38,758.59 = 7,120.74 : x
  2. Step 2: Convert to fraction form
    25,839.58/38,758.59 = 7,120.74/x
  3. Step 3: Cross multiply
    25,839.58x = 38,758.59 × 7,120.74
  4. Step 4: Simplify right side
    25,839.58x = 275,989,695.52
  5. Step 5: Solve for x
    x = 275,989,695.52/25,839.58
  6. Step 6: Final answer
    x = 10,680.89

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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.