Home / 19,789.28-27,290.76-17,820.98

Finding the Fourth Proportional to 19,789.28, 27,290.76 and 17,820.98

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Solution

The fourth proportional to 19,789.28, 27,290.76 and 17,820.98 is: 24,576.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,789.28 : 27,290.76 = 17,820.98 : x
  2. Step 2: Convert to fraction form
    19,789.28/27,290.76 = 17,820.98/x
  3. Step 3: Cross multiply
    19,789.28x = 27,290.76 × 17,820.98
  4. Step 4: Simplify right side
    19,789.28x = 486,348,088.14
  5. Step 5: Solve for x
    x = 486,348,088.14/19,789.28
  6. Step 6: Final answer
    x = 24,576.34

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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.