Home / 19,679.28-29,442.36-18,024.45

Finding the Fourth Proportional to 19,679.28, 29,442.36 and 18,024.45

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Solution

The fourth proportional to 19,679.28, 29,442.36 and 18,024.45 is: 26,966.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,679.28 : 29,442.36 = 18,024.45 : x
  2. Step 2: Convert to fraction form
    19,679.28/29,442.36 = 18,024.45/x
  3. Step 3: Cross multiply
    19,679.28x = 29,442.36 × 18,024.45
  4. Step 4: Simplify right side
    19,679.28x = 530,682,345.70
  5. Step 5: Solve for x
    x = 530,682,345.70/19,679.28
  6. Step 6: Final answer
    x = 26,966.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.