Home / 21,424.62-29,565.81-11,993.34

Finding the Fourth Proportional to 21,424.62, 29,565.81 and 11,993.34

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Solution

The fourth proportional to 21,424.62, 29,565.81 and 11,993.34 is: 16,550.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,424.62 : 29,565.81 = 11,993.34 : x
  2. Step 2: Convert to fraction form
    21,424.62/29,565.81 = 11,993.34/x
  3. Step 3: Cross multiply
    21,424.62x = 29,565.81 × 11,993.34
  4. Step 4: Simplify right side
    21,424.62x = 354,592,811.71
  5. Step 5: Solve for x
    x = 354,592,811.71/21,424.62
  6. Step 6: Final answer
    x = 16,550.72

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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.