Home / 21,426.24-29,565.36-11,994.60

Finding the Fourth Proportional to 21,426.24, 29,565.36 and 11,994.60

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Solution

The fourth proportional to 21,426.24, 29,565.36 and 11,994.60 is: 16,550.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,426.24 : 29,565.36 = 11,994.60 : x
  2. Step 2: Convert to fraction form
    21,426.24/29,565.36 = 11,994.60/x
  3. Step 3: Cross multiply
    21,426.24x = 29,565.36 × 11,994.60
  4. Step 4: Simplify right side
    21,426.24x = 354,624,667.06
  5. Step 5: Solve for x
    x = 354,624,667.06/21,426.24
  6. Step 6: Final answer
    x = 16,550.95

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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.