Home / 19,540.28-29,303.16-8,448.56

Finding the Fourth Proportional to 19,540.28, 29,303.16 and 8,448.56

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Solution

The fourth proportional to 19,540.28, 29,303.16 and 8,448.56 is: 12,669.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.28 : 29,303.16 = 8,448.56 : x
  2. Step 2: Convert to fraction form
    19,540.28/29,303.16 = 8,448.56/x
  3. Step 3: Cross multiply
    19,540.28x = 29,303.16 × 8,448.56
  4. Step 4: Simplify right side
    19,540.28x = 247,569,505.45
  5. Step 5: Solve for x
    x = 247,569,505.45/19,540.28
  6. Step 6: Final answer
    x = 12,669.70

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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.