Home / 19,839.80-27,363.12-16,865.48

Finding the Fourth Proportional to 19,839.80, 27,363.12 and 16,865.48

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Solution

The fourth proportional to 19,839.80, 27,363.12 and 16,865.48 is: 23,260.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,839.80 : 27,363.12 = 16,865.48 : x
  2. Step 2: Convert to fraction form
    19,839.80/27,363.12 = 16,865.48/x
  3. Step 3: Cross multiply
    19,839.80x = 27,363.12 × 16,865.48
  4. Step 4: Simplify right side
    19,839.80x = 461,492,153.10
  5. Step 5: Solve for x
    x = 461,492,153.10/19,839.80
  6. Step 6: Final answer
    x = 23,260.93

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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.