Home / 19,750.56-29,630.66-13,918.56

Finding the Fourth Proportional to 19,750.56, 29,630.66 and 13,918.56

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Solution

The fourth proportional to 19,750.56, 29,630.66 and 13,918.56 is: 20,881.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,750.56 : 29,630.66 = 13,918.56 : x
  2. Step 2: Convert to fraction form
    19,750.56/29,630.66 = 13,918.56/x
  3. Step 3: Cross multiply
    19,750.56x = 29,630.66 × 13,918.56
  4. Step 4: Simplify right side
    19,750.56x = 412,416,049.46
  5. Step 5: Solve for x
    x = 412,416,049.46/19,750.56
  6. Step 6: Final answer
    x = 20,881.23

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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.