Home / 25,218.45-37,833.75-7,687.21

Finding the Fourth Proportional to 25,218.45, 37,833.75 and 7,687.21

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Solution

The fourth proportional to 25,218.45, 37,833.75 and 7,687.21 is: 11,532.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,218.45 : 37,833.75 = 7,687.21 : x
  2. Step 2: Convert to fraction form
    25,218.45/37,833.75 = 7,687.21/x
  3. Step 3: Cross multiply
    25,218.45x = 37,833.75 × 7,687.21
  4. Step 4: Simplify right side
    25,218.45x = 290,835,981.34
  5. Step 5: Solve for x
    x = 290,835,981.34/25,218.45
  6. Step 6: Final answer
    x = 11,532.67

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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.