Home / 34,282.78-47,309.61-19,378.78

Finding the Fourth Proportional to 34,282.78, 47,309.61 and 19,378.78

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Solution

The fourth proportional to 34,282.78, 47,309.61 and 19,378.78 is: 26,742.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,282.78 : 47,309.61 = 19,378.78 : x
  2. Step 2: Convert to fraction form
    34,282.78/47,309.61 = 19,378.78/x
  3. Step 3: Cross multiply
    34,282.78x = 47,309.61 × 19,378.78
  4. Step 4: Simplify right side
    34,282.78x = 916,802,524.08
  5. Step 5: Solve for x
    x = 916,802,524.08/34,282.78
  6. Step 6: Final answer
    x = 26,742.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.