Home / 31,814.34-47,690.37-17,781.18

Finding the Fourth Proportional to 31,814.34, 47,690.37 and 17,781.18

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Solution

The fourth proportional to 31,814.34, 47,690.37 and 17,781.18 is: 26,654.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,814.34 : 47,690.37 = 17,781.18 : x
  2. Step 2: Convert to fraction form
    31,814.34/47,690.37 = 17,781.18/x
  3. Step 3: Cross multiply
    31,814.34x = 47,690.37 × 17,781.18
  4. Step 4: Simplify right side
    31,814.34x = 847,991,053.24
  5. Step 5: Solve for x
    x = 847,991,053.24/31,814.34
  6. Step 6: Final answer
    x = 26,654.37

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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.