Home / 19,678.28-29,440.87-18,023.45

Finding the Fourth Proportional to 19,678.28, 29,440.87 and 18,023.45

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Solution

The fourth proportional to 19,678.28, 29,440.87 and 18,023.45 is: 26,965.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,678.28 : 29,440.87 = 18,023.45 : x
  2. Step 2: Convert to fraction form
    19,678.28/29,440.87 = 18,023.45/x
  3. Step 3: Cross multiply
    19,678.28x = 29,440.87 × 18,023.45
  4. Step 4: Simplify right side
    19,678.28x = 530,625,856.14
  5. Step 5: Solve for x
    x = 530,625,856.14/19,678.28
  6. Step 6: Final answer
    x = 26,965.06

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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.