Home / 30,439.28-45,665.40-17,968.59

Finding the Fourth Proportional to 30,439.28, 45,665.40 and 17,968.59

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Solution

The fourth proportional to 30,439.28, 45,665.40 and 17,968.59 is: 26,956.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,439.28 : 45,665.40 = 17,968.59 : x
  2. Step 2: Convert to fraction form
    30,439.28/45,665.40 = 17,968.59/x
  3. Step 3: Cross multiply
    30,439.28x = 45,665.40 × 17,968.59
  4. Step 4: Simplify right side
    30,439.28x = 820,542,849.79
  5. Step 5: Solve for x
    x = 820,542,849.79/30,439.28
  6. Step 6: Final answer
    x = 26,956.71

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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.