Home / 21,112.17-31,668.24-10,012.82

Finding the Fourth Proportional to 21,112.17, 31,668.24 and 10,012.82

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Solution

The fourth proportional to 21,112.17, 31,668.24 and 10,012.82 is: 15,019.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,112.17 : 31,668.24 = 10,012.82 : x
  2. Step 2: Convert to fraction form
    21,112.17/31,668.24 = 10,012.82/x
  3. Step 3: Cross multiply
    21,112.17x = 31,668.24 × 10,012.82
  4. Step 4: Simplify right side
    21,112.17x = 317,088,228.50
  5. Step 5: Solve for x
    x = 317,088,228.50/21,112.17
  6. Step 6: Final answer
    x = 15,019.22

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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.