Home / 21,224.27-31,849.77-11,870.41

Finding the Fourth Proportional to 21,224.27, 31,849.77 and 11,870.41

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Solution

The fourth proportional to 21,224.27, 31,849.77 and 11,870.41 is: 17,813.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,224.27 : 31,849.77 = 11,870.41 : x
  2. Step 2: Convert to fraction form
    21,224.27/31,849.77 = 11,870.41/x
  3. Step 3: Cross multiply
    21,224.27x = 31,849.77 × 11,870.41
  4. Step 4: Simplify right side
    21,224.27x = 378,069,828.31
  5. Step 5: Solve for x
    x = 378,069,828.31/21,224.27
  6. Step 6: Final answer
    x = 17,813.09

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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.