Home / 19,740.98-27,243.28-10,789.08

Finding the Fourth Proportional to 19,740.98, 27,243.28 and 10,789.08

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Solution

The fourth proportional to 19,740.98, 27,243.28 and 10,789.08 is: 14,889.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.98 : 27,243.28 = 10,789.08 : x
  2. Step 2: Convert to fraction form
    19,740.98/27,243.28 = 10,789.08/x
  3. Step 3: Cross multiply
    19,740.98x = 27,243.28 × 10,789.08
  4. Step 4: Simplify right side
    19,740.98x = 293,929,927.38
  5. Step 5: Solve for x
    x = 293,929,927.38/19,740.98
  6. Step 6: Final answer
    x = 14,889.33

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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.