Home / 21,995.04-30,351.60-12,436.50

Finding the Fourth Proportional to 21,995.04, 30,351.60 and 12,436.50

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Solution

The fourth proportional to 21,995.04, 30,351.60 and 12,436.50 is: 17,161.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,995.04 : 30,351.60 = 12,436.50 : x
  2. Step 2: Convert to fraction form
    21,995.04/30,351.60 = 12,436.50/x
  3. Step 3: Cross multiply
    21,995.04x = 30,351.60 × 12,436.50
  4. Step 4: Simplify right side
    21,995.04x = 377,467,673.40
  5. Step 5: Solve for x
    x = 377,467,673.40/21,995.04
  6. Step 6: Final answer
    x = 17,161.49

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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.