Home / 31,815.73-47,682.08-17,775.19

Finding the Fourth Proportional to 31,815.73, 47,682.08 and 17,775.19

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Solution

The fourth proportional to 31,815.73, 47,682.08 and 17,775.19 is: 26,639.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,815.73 : 47,682.08 = 17,775.19 : x
  2. Step 2: Convert to fraction form
    31,815.73/47,682.08 = 17,775.19/x
  3. Step 3: Cross multiply
    31,815.73x = 47,682.08 × 17,775.19
  4. Step 4: Simplify right side
    31,815.73x = 847,558,031.60
  5. Step 5: Solve for x
    x = 847,558,031.60/31,815.73
  6. Step 6: Final answer
    x = 26,639.59

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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.