Home / 21,795.12-30,076.38-12,363.48

Finding the Fourth Proportional to 21,795.12, 30,076.38 and 12,363.48

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Solution

The fourth proportional to 21,795.12, 30,076.38 and 12,363.48 is: 17,061.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,795.12 : 30,076.38 = 12,363.48 : x
  2. Step 2: Convert to fraction form
    21,795.12/30,076.38 = 12,363.48/x
  3. Step 3: Cross multiply
    21,795.12x = 30,076.38 × 12,363.48
  4. Step 4: Simplify right side
    21,795.12x = 371,848,722.60
  5. Step 5: Solve for x
    x = 371,848,722.60/21,795.12
  6. Step 6: Final answer
    x = 17,061.10

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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.