Home / 19,778.40-27,294.21-10,825.89

Finding the Fourth Proportional to 19,778.40, 27,294.21 and 10,825.89

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Solution

The fourth proportional to 19,778.40, 27,294.21 and 10,825.89 is: 14,939.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,778.40 : 27,294.21 = 10,825.89 : x
  2. Step 2: Convert to fraction form
    19,778.40/27,294.21 = 10,825.89/x
  3. Step 3: Cross multiply
    19,778.40x = 27,294.21 × 10,825.89
  4. Step 4: Simplify right side
    19,778.40x = 295,484,115.10
  5. Step 5: Solve for x
    x = 295,484,115.10/19,778.40
  6. Step 6: Final answer
    x = 14,939.74

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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.