Home / 19,721.48-27,216.23-10,769.40

Finding the Fourth Proportional to 19,721.48, 27,216.23 and 10,769.40

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Solution

The fourth proportional to 19,721.48, 27,216.23 and 10,769.40 is: 14,862.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,721.48 : 27,216.23 = 10,769.40 : x
  2. Step 2: Convert to fraction form
    19,721.48/27,216.23 = 10,769.40/x
  3. Step 3: Cross multiply
    19,721.48x = 27,216.23 × 10,769.40
  4. Step 4: Simplify right side
    19,721.48x = 293,102,413.52
  5. Step 5: Solve for x
    x = 293,102,413.52/19,721.48
  6. Step 6: Final answer
    x = 14,862.09

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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.