Home / 22,405.20-33,721.80-16,886.40

Finding the Fourth Proportional to 22,405.20, 33,721.80 and 16,886.40

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Solution

The fourth proportional to 22,405.20, 33,721.80 and 16,886.40 is: 25,415.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,405.20 : 33,721.80 = 16,886.40 : x
  2. Step 2: Convert to fraction form
    22,405.20/33,721.80 = 16,886.40/x
  3. Step 3: Cross multiply
    22,405.20x = 33,721.80 × 16,886.40
  4. Step 4: Simplify right side
    22,405.20x = 569,439,803.52
  5. Step 5: Solve for x
    x = 569,439,803.52/22,405.20
  6. Step 6: Final answer
    x = 25,415.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.