Home / 25,450.17-38,164.20-7,921.35

Finding the Fourth Proportional to 25,450.17, 38,164.20 and 7,921.35

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Solution

The fourth proportional to 25,450.17, 38,164.20 and 7,921.35 is: 11,878.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,450.17 : 38,164.20 = 7,921.35 : x
  2. Step 2: Convert to fraction form
    25,450.17/38,164.20 = 7,921.35/x
  3. Step 3: Cross multiply
    25,450.17x = 38,164.20 × 7,921.35
  4. Step 4: Simplify right side
    25,450.17x = 302,311,985.67
  5. Step 5: Solve for x
    x = 302,311,985.67/25,450.17
  6. Step 6: Final answer
    x = 11,878.58

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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.