Home / 21,747.06-30,020.10-14,683.05

Finding the Fourth Proportional to 21,747.06, 30,020.10 and 14,683.05

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Solution

The fourth proportional to 21,747.06, 30,020.10 and 14,683.05 is: 20,268.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,747.06 : 30,020.10 = 14,683.05 : x
  2. Step 2: Convert to fraction form
    21,747.06/30,020.10 = 14,683.05/x
  3. Step 3: Cross multiply
    21,747.06x = 30,020.10 × 14,683.05
  4. Step 4: Simplify right side
    21,747.06x = 440,786,629.31
  5. Step 5: Solve for x
    x = 440,786,629.31/21,747.06
  6. Step 6: Final answer
    x = 20,268.79

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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.