Home / 21,240.18-31,866.75-10,859.22

Finding the Fourth Proportional to 21,240.18, 31,866.75 and 10,859.22

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Solution

The fourth proportional to 21,240.18, 31,866.75 and 10,859.22 is: 16,292.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,240.18 : 31,866.75 = 10,859.22 : x
  2. Step 2: Convert to fraction form
    21,240.18/31,866.75 = 10,859.22/x
  3. Step 3: Cross multiply
    21,240.18x = 31,866.75 × 10,859.22
  4. Step 4: Simplify right side
    21,240.18x = 346,048,048.94
  5. Step 5: Solve for x
    x = 346,048,048.94/21,240.18
  6. Step 6: Final answer
    x = 16,292.14

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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.