Home / 38,401.71-52,994.94-21,405.48

Finding the Fourth Proportional to 38,401.71, 52,994.94 and 21,405.48

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Solution

The fourth proportional to 38,401.71, 52,994.94 and 21,405.48 is: 29,539.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,401.71 : 52,994.94 = 21,405.48 : x
  2. Step 2: Convert to fraction form
    38,401.71/52,994.94 = 21,405.48/x
  3. Step 3: Cross multiply
    38,401.71x = 52,994.94 × 21,405.48
  4. Step 4: Simplify right side
    38,401.71x = 1,134,382,128.27
  5. Step 5: Solve for x
    x = 1,134,382,128.27/38,401.71
  6. Step 6: Final answer
    x = 29,539.89

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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.