Home / 34,284.87-47,304.27-21,540.06

Finding the Fourth Proportional to 34,284.87, 47,304.27 and 21,540.06

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Solution

The fourth proportional to 34,284.87, 47,304.27 and 21,540.06 is: 29,719.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,284.87 : 47,304.27 = 21,540.06 : x
  2. Step 2: Convert to fraction form
    34,284.87/47,304.27 = 21,540.06/x
  3. Step 3: Cross multiply
    34,284.87x = 47,304.27 × 21,540.06
  4. Step 4: Simplify right side
    34,284.87x = 1,018,936,814.06
  5. Step 5: Solve for x
    x = 1,018,936,814.06/34,284.87
  6. Step 6: Final answer
    x = 29,719.72

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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.