Home / 31,853.02-47,787.63-18,716.44

Finding the Fourth Proportional to 31,853.02, 47,787.63 and 18,716.44

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Solution

The fourth proportional to 31,853.02, 47,787.63 and 18,716.44 is: 28,079.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,853.02 : 47,787.63 = 18,716.44 : x
  2. Step 2: Convert to fraction form
    31,853.02/47,787.63 = 18,716.44/x
  3. Step 3: Cross multiply
    31,853.02x = 47,787.63 × 18,716.44
  4. Step 4: Simplify right side
    31,853.02x = 894,414,309.64
  5. Step 5: Solve for x
    x = 894,414,309.64/31,853.02
  6. Step 6: Final answer
    x = 28,079.42

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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.