Home / 39,930.47-55,098.12-22,935.45

Finding the Fourth Proportional to 39,930.47, 55,098.12 and 22,935.45

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Solution

The fourth proportional to 39,930.47, 55,098.12 and 22,935.45 is: 31,647.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,930.47 : 55,098.12 = 22,935.45 : x
  2. Step 2: Convert to fraction form
    39,930.47/55,098.12 = 22,935.45/x
  3. Step 3: Cross multiply
    39,930.47x = 55,098.12 × 22,935.45
  4. Step 4: Simplify right side
    39,930.47x = 1,263,700,468.98
  5. Step 5: Solve for x
    x = 1,263,700,468.98/39,930.47
  6. Step 6: Final answer
    x = 31,647.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.