Home / 19,782.14-27,299.36-10,830.17

Finding the Fourth Proportional to 19,782.14, 27,299.36 and 10,830.17

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Solution

The fourth proportional to 19,782.14, 27,299.36 and 10,830.17 is: 14,945.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,782.14 : 27,299.36 = 10,830.17 : x
  2. Step 2: Convert to fraction form
    19,782.14/27,299.36 = 10,830.17/x
  3. Step 3: Cross multiply
    19,782.14x = 27,299.36 × 10,830.17
  4. Step 4: Simplify right side
    19,782.14x = 295,656,805.02
  5. Step 5: Solve for x
    x = 295,656,805.02/19,782.14
  6. Step 6: Final answer
    x = 14,945.65

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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.