Home / 19,722.42-27,220.46-11,655.74

Finding the Fourth Proportional to 19,722.42, 27,220.46 and 11,655.74

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Solution

The fourth proportional to 19,722.42, 27,220.46 and 11,655.74 is: 16,087.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,722.42 : 27,220.46 = 11,655.74 : x
  2. Step 2: Convert to fraction form
    19,722.42/27,220.46 = 11,655.74/x
  3. Step 3: Cross multiply
    19,722.42x = 27,220.46 × 11,655.74
  4. Step 4: Simplify right side
    19,722.42x = 317,274,614.21
  5. Step 5: Solve for x
    x = 317,274,614.21/19,722.42
  6. Step 6: Final answer
    x = 16,087.00

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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.