Home / 38,401.49-52,987.96-21,631.25

Finding the Fourth Proportional to 38,401.49, 52,987.96 and 21,631.25

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Solution

The fourth proportional to 38,401.49, 52,987.96 and 21,631.25 is: 29,847.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,401.49 : 52,987.96 = 21,631.25 : x
  2. Step 2: Convert to fraction form
    38,401.49/52,987.96 = 21,631.25/x
  3. Step 3: Cross multiply
    38,401.49x = 52,987.96 × 21,631.25
  4. Step 4: Simplify right side
    38,401.49x = 1,146,195,809.75
  5. Step 5: Solve for x
    x = 1,146,195,809.75/38,401.49
  6. Step 6: Final answer
    x = 29,847.69

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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.