Home / 38,160.50-52,660.70-21,161.99

Finding the Fourth Proportional to 38,160.50, 52,660.70 and 21,161.99

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Solution

The fourth proportional to 38,160.50, 52,660.70 and 21,161.99 is: 29,203.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,160.50 : 52,660.70 = 21,161.99 : x
  2. Step 2: Convert to fraction form
    38,160.50/52,660.70 = 21,161.99/x
  3. Step 3: Cross multiply
    38,160.50x = 52,660.70 × 21,161.99
  4. Step 4: Simplify right side
    38,160.50x = 1,114,405,232.63
  5. Step 5: Solve for x
    x = 1,114,405,232.63/38,160.50
  6. Step 6: Final answer
    x = 29,203.11

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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.