Home / 19,827.80-27,363.75-11,331.18

Finding the Fourth Proportional to 19,827.80, 27,363.75 and 11,331.18

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Solution

The fourth proportional to 19,827.80, 27,363.75 and 11,331.18 is: 15,637.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,827.80 : 27,363.75 = 11,331.18 : x
  2. Step 2: Convert to fraction form
    19,827.80/27,363.75 = 11,331.18/x
  3. Step 3: Cross multiply
    19,827.80x = 27,363.75 × 11,331.18
  4. Step 4: Simplify right side
    19,827.80x = 310,063,468.23
  5. Step 5: Solve for x
    x = 310,063,468.23/19,827.80
  6. Step 6: Final answer
    x = 15,637.82

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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.