Home / 19,886.61-27,443.80-10,934.49

Finding the Fourth Proportional to 19,886.61, 27,443.80 and 10,934.49

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Solution

The fourth proportional to 19,886.61, 27,443.80 and 10,934.49 is: 15,089.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,886.61 : 27,443.80 = 10,934.49 : x
  2. Step 2: Convert to fraction form
    19,886.61/27,443.80 = 10,934.49/x
  3. Step 3: Cross multiply
    19,886.61x = 27,443.80 × 10,934.49
  4. Step 4: Simplify right side
    19,886.61x = 300,083,901.99
  5. Step 5: Solve for x
    x = 300,083,901.99/19,886.61
  6. Step 6: Final answer
    x = 15,089.75

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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.