Home / 19,782.30-27,299.88-10,830.18

Finding the Fourth Proportional to 19,782.30, 27,299.88 and 10,830.18

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Solution

The fourth proportional to 19,782.30, 27,299.88 and 10,830.18 is: 14,945.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,782.30 : 27,299.88 = 10,830.18 : x
  2. Step 2: Convert to fraction form
    19,782.30/27,299.88 = 10,830.18/x
  3. Step 3: Cross multiply
    19,782.30x = 27,299.88 × 10,830.18
  4. Step 4: Simplify right side
    19,782.30x = 295,662,614.38
  5. Step 5: Solve for x
    x = 295,662,614.38/19,782.30
  6. Step 6: Final answer
    x = 14,945.82

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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.