Home / 25,339.12-38,008.80-7,806.72

Finding the Fourth Proportional to 25,339.12, 38,008.80 and 7,806.72

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Solution

The fourth proportional to 25,339.12, 38,008.80 and 7,806.72 is: 11,710.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,339.12 : 38,008.80 = 7,806.72 : x
  2. Step 2: Convert to fraction form
    25,339.12/38,008.80 = 7,806.72/x
  3. Step 3: Cross multiply
    25,339.12x = 38,008.80 × 7,806.72
  4. Step 4: Simplify right side
    25,339.12x = 296,724,059.14
  5. Step 5: Solve for x
    x = 296,724,059.14/25,339.12
  6. Step 6: Final answer
    x = 11,710.12

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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.