Home / 21,955.03-30,297.60-12,264.61

Finding the Fourth Proportional to 21,955.03, 30,297.60 and 12,264.61

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Solution

The fourth proportional to 21,955.03, 30,297.60 and 12,264.61 is: 16,924.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,955.03 : 30,297.60 = 12,264.61 : x
  2. Step 2: Convert to fraction form
    21,955.03/30,297.60 = 12,264.61/x
  3. Step 3: Cross multiply
    21,955.03x = 30,297.60 × 12,264.61
  4. Step 4: Simplify right side
    21,955.03x = 371,588,172.19
  5. Step 5: Solve for x
    x = 371,588,172.19/21,955.03
  6. Step 6: Final answer
    x = 16,924.97

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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.