Home / 20,741.02-28,621.74-11,787.28

Finding the Fourth Proportional to 20,741.02, 28,621.74 and 11,787.28

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Solution

The fourth proportional to 20,741.02, 28,621.74 and 11,787.28 is: 16,265.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741.02 : 28,621.74 = 11,787.28 : x
  2. Step 2: Convert to fraction form
    20,741.02/28,621.74 = 11,787.28/x
  3. Step 3: Cross multiply
    20,741.02x = 28,621.74 × 11,787.28
  4. Step 4: Simplify right side
    20,741.02x = 337,372,463.47
  5. Step 5: Solve for x
    x = 337,372,463.47/20,741.02
  6. Step 6: Final answer
    x = 16,265.95

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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.