Home / 23,778.52-32,792.70-20,420.28

Finding the Fourth Proportional to 23,778.52, 32,792.70 and 20,420.28

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Solution

The fourth proportional to 23,778.52, 32,792.70 and 20,420.28 is: 28,161.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,778.52 : 32,792.70 = 20,420.28 : x
  2. Step 2: Convert to fraction form
    23,778.52/32,792.70 = 20,420.28/x
  3. Step 3: Cross multiply
    23,778.52x = 32,792.70 × 20,420.28
  4. Step 4: Simplify right side
    23,778.52x = 669,636,115.96
  5. Step 5: Solve for x
    x = 669,636,115.96/23,778.52
  6. Step 6: Final answer
    x = 28,161.39

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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.