Home / 19,617.78-29,426.70-11,824.80

Finding the Fourth Proportional to 19,617.78, 29,426.70 and 11,824.80

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Solution

The fourth proportional to 19,617.78, 29,426.70 and 11,824.80 is: 17,737.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,617.78 : 29,426.70 = 11,824.80 : x
  2. Step 2: Convert to fraction form
    19,617.78/29,426.70 = 11,824.80/x
  3. Step 3: Cross multiply
    19,617.78x = 29,426.70 × 11,824.80
  4. Step 4: Simplify right side
    19,617.78x = 347,964,842.16
  5. Step 5: Solve for x
    x = 347,964,842.16/19,617.78
  6. Step 6: Final answer
    x = 17,737.22

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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.