Home / 25,351.04-38,031.60-7,820.08

Finding the Fourth Proportional to 25,351.04, 38,031.60 and 7,820.08

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Solution

The fourth proportional to 25,351.04, 38,031.60 and 7,820.08 is: 11,731.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,351.04 : 38,031.60 = 7,820.08 : x
  2. Step 2: Convert to fraction form
    25,351.04/38,031.60 = 7,820.08/x
  3. Step 3: Cross multiply
    25,351.04x = 38,031.60 × 7,820.08
  4. Step 4: Simplify right side
    25,351.04x = 297,410,154.53
  5. Step 5: Solve for x
    x = 297,410,154.53/25,351.04
  6. Step 6: Final answer
    x = 11,731.67

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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.