Home / 31,753.81-47,630.72-21,890.44

Finding the Fourth Proportional to 31,753.81, 47,630.72 and 21,890.44

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Solution

The fourth proportional to 31,753.81, 47,630.72 and 21,890.44 is: 32,835.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,753.81 : 47,630.72 = 21,890.44 : x
  2. Step 2: Convert to fraction form
    31,753.81/47,630.72 = 21,890.44/x
  3. Step 3: Cross multiply
    31,753.81x = 47,630.72 × 21,890.44
  4. Step 4: Simplify right side
    31,753.81x = 1,042,657,418.32
  5. Step 5: Solve for x
    x = 1,042,657,418.32/31,753.81
  6. Step 6: Final answer
    x = 32,835.66

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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.