Home / 22,419.66-30,939.95-13,926.46

Finding the Fourth Proportional to 22,419.66, 30,939.95 and 13,926.46

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Solution

The fourth proportional to 22,419.66, 30,939.95 and 13,926.46 is: 19,219.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,419.66 : 30,939.95 = 13,926.46 : x
  2. Step 2: Convert to fraction form
    22,419.66/30,939.95 = 13,926.46/x
  3. Step 3: Cross multiply
    22,419.66x = 30,939.95 × 13,926.46
  4. Step 4: Simplify right side
    22,419.66x = 430,883,976.08
  5. Step 5: Solve for x
    x = 430,883,976.08/22,419.66
  6. Step 6: Final answer
    x = 19,219.02

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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.