Home / 25,651.12-38,479.32-6,931.26

Finding the Fourth Proportional to 25,651.12, 38,479.32 and 6,931.26

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Solution

The fourth proportional to 25,651.12, 38,479.32 and 6,931.26 is: 10,397.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,651.12 : 38,479.32 = 6,931.26 : x
  2. Step 2: Convert to fraction form
    25,651.12/38,479.32 = 6,931.26/x
  3. Step 3: Cross multiply
    25,651.12x = 38,479.32 × 6,931.26
  4. Step 4: Simplify right side
    25,651.12x = 266,710,171.54
  5. Step 5: Solve for x
    x = 266,710,171.54/25,651.12
  6. Step 6: Final answer
    x = 10,397.60

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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.