Home / 19,830.73-27,366.45-10,878.30

Finding the Fourth Proportional to 19,830.73, 27,366.45 and 10,878.30

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Solution

The fourth proportional to 19,830.73, 27,366.45 and 10,878.30 is: 15,012.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.73 : 27,366.45 = 10,878.30 : x
  2. Step 2: Convert to fraction form
    19,830.73/27,366.45 = 10,878.30/x
  3. Step 3: Cross multiply
    19,830.73x = 27,366.45 × 10,878.30
  4. Step 4: Simplify right side
    19,830.73x = 297,700,514.87
  5. Step 5: Solve for x
    x = 297,700,514.87/19,830.73
  6. Step 6: Final answer
    x = 15,012.08

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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.