Home / 31,613.04-47,415.84-21,202.80

Finding the Fourth Proportional to 31,613.04, 47,415.84 and 21,202.80

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Solution

The fourth proportional to 31,613.04, 47,415.84 and 21,202.80 is: 31,801.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,613.04 : 47,415.84 = 21,202.80 : x
  2. Step 2: Convert to fraction form
    31,613.04/47,415.84 = 21,202.80/x
  3. Step 3: Cross multiply
    31,613.04x = 47,415.84 × 21,202.80
  4. Step 4: Simplify right side
    31,613.04x = 1,005,348,572.35
  5. Step 5: Solve for x
    x = 1,005,348,572.35/31,613.04
  6. Step 6: Final answer
    x = 31,801.71

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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.