Home / 31,340.91-47,012.94-10,279.09

Finding the Fourth Proportional to 31,340.91, 47,012.94 and 10,279.09

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Solution

The fourth proportional to 31,340.91, 47,012.94 and 10,279.09 is: 15,419.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,340.91 : 47,012.94 = 10,279.09 : x
  2. Step 2: Convert to fraction form
    31,340.91/47,012.94 = 10,279.09/x
  3. Step 3: Cross multiply
    31,340.91x = 47,012.94 × 10,279.09
  4. Step 4: Simplify right side
    31,340.91x = 483,249,954.96
  5. Step 5: Solve for x
    x = 483,249,954.96/31,340.91
  6. Step 6: Final answer
    x = 15,419.14

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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.