Home / 29,820.75-41,154.65-19,731.79

Finding the Fourth Proportional to 29,820.75, 41,154.65 and 19,731.79

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Solution

The fourth proportional to 29,820.75, 41,154.65 and 19,731.79 is: 27,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,820.75 : 41,154.65 = 19,731.79 : x
  2. Step 2: Convert to fraction form
    29,820.75/41,154.65 = 19,731.79/x
  3. Step 3: Cross multiply
    29,820.75x = 41,154.65 × 19,731.79
  4. Step 4: Simplify right side
    29,820.75x = 812,054,911.32
  5. Step 5: Solve for x
    x = 812,054,911.32/29,820.75
  6. Step 6: Final answer
    x = 27,231.20

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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.