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Finding the Fourth Proportional to 28,355.40, 42,533.10 and 22,013.10

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Solution

The fourth proportional to 28,355.40, 42,533.10 and 22,013.10 is: 33,019.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,355.40 : 42,533.10 = 22,013.10 : x
  2. Step 2: Convert to fraction form
    28,355.40/42,533.10 = 22,013.10/x
  3. Step 3: Cross multiply
    28,355.40x = 42,533.10 × 22,013.10
  4. Step 4: Simplify right side
    28,355.40x = 936,285,383.61
  5. Step 5: Solve for x
    x = 936,285,383.61/28,355.40
  6. Step 6: Final answer
    x = 33,019.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.