Home / 19,990.49-27,590.45-11,924.64

Finding the Fourth Proportional to 19,990.49, 27,590.45 and 11,924.64

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Solution

The fourth proportional to 19,990.49, 27,590.45 and 11,924.64 is: 16,458.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,990.49 : 27,590.45 = 11,924.64 : x
  2. Step 2: Convert to fraction form
    19,990.49/27,590.45 = 11,924.64/x
  3. Step 3: Cross multiply
    19,990.49x = 27,590.45 × 11,924.64
  4. Step 4: Simplify right side
    19,990.49x = 329,006,124.06
  5. Step 5: Solve for x
    x = 329,006,124.06/19,990.49
  6. Step 6: Final answer
    x = 16,458.14

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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.