Home / 19,839.80-27,378.84-10,887.45

Finding the Fourth Proportional to 19,839.80, 27,378.84 and 10,887.45

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Solution

The fourth proportional to 19,839.80, 27,378.84 and 10,887.45 is: 15,024.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,839.80 : 27,378.84 = 10,887.45 : x
  2. Step 2: Convert to fraction form
    19,839.80/27,378.84 = 10,887.45/x
  3. Step 3: Cross multiply
    19,839.80x = 27,378.84 × 10,887.45
  4. Step 4: Simplify right side
    19,839.80x = 298,085,628.47
  5. Step 5: Solve for x
    x = 298,085,628.47/19,839.80
  6. Step 6: Final answer
    x = 15,024.63

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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.