Home / 28,901.70-43,377.24-20,602.02

Finding the Fourth Proportional to 28,901.70, 43,377.24 and 20,602.02

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Solution

The fourth proportional to 28,901.70, 43,377.24 and 20,602.02 is: 30,920.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,901.70 : 43,377.24 = 20,602.02 : x
  2. Step 2: Convert to fraction form
    28,901.70/43,377.24 = 20,602.02/x
  3. Step 3: Cross multiply
    28,901.70x = 43,377.24 × 20,602.02
  4. Step 4: Simplify right side
    28,901.70x = 893,658,766.02
  5. Step 5: Solve for x
    x = 893,658,766.02/28,901.70
  6. Step 6: Final answer
    x = 30,920.63

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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.