Home / 25,631.81-38,449.73-6,911.57

Finding the Fourth Proportional to 25,631.81, 38,449.73 and 6,911.57

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Solution

The fourth proportional to 25,631.81, 38,449.73 and 6,911.57 is: 10,367.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,631.81 : 38,449.73 = 6,911.57 : x
  2. Step 2: Convert to fraction form
    25,631.81/38,449.73 = 6,911.57/x
  3. Step 3: Cross multiply
    25,631.81x = 38,449.73 × 6,911.57
  4. Step 4: Simplify right side
    25,631.81x = 265,748,000.38
  5. Step 5: Solve for x
    x = 265,748,000.38/25,631.81
  6. Step 6: Final answer
    x = 10,367.90

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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.