Home / 19,988.67-27,585.45-11,036.15

Finding the Fourth Proportional to 19,988.67, 27,585.45 and 11,036.15

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Solution

The fourth proportional to 19,988.67, 27,585.45 and 11,036.15 is: 15,230.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988.67 : 27,585.45 = 11,036.15 : x
  2. Step 2: Convert to fraction form
    19,988.67/27,585.45 = 11,036.15/x
  3. Step 3: Cross multiply
    19,988.67x = 27,585.45 × 11,036.15
  4. Step 4: Simplify right side
    19,988.67x = 304,436,970.91
  5. Step 5: Solve for x
    x = 304,436,970.91/19,988.67
  6. Step 6: Final answer
    x = 15,230.48

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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.