Home / 22,012.47-30,376.95-11,940.72

Finding the Fourth Proportional to 22,012.47, 30,376.95 and 11,940.72

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Solution

The fourth proportional to 22,012.47, 30,376.95 and 11,940.72 is: 16,478.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,012.47 : 30,376.95 = 11,940.72 : x
  2. Step 2: Convert to fraction form
    22,012.47/30,376.95 = 11,940.72/x
  3. Step 3: Cross multiply
    22,012.47x = 30,376.95 × 11,940.72
  4. Step 4: Simplify right side
    22,012.47x = 362,722,654.40
  5. Step 5: Solve for x
    x = 362,722,654.40/22,012.47
  6. Step 6: Final answer
    x = 16,478.05

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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.