Home / 22,709.39-31,338.73-12,637.66

Finding the Fourth Proportional to 22,709.39, 31,338.73 and 12,637.66

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Solution

The fourth proportional to 22,709.39, 31,338.73 and 12,637.66 is: 17,439.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,709.39 : 31,338.73 = 12,637.66 : x
  2. Step 2: Convert to fraction form
    22,709.39/31,338.73 = 12,637.66/x
  3. Step 3: Cross multiply
    22,709.39x = 31,338.73 × 12,637.66
  4. Step 4: Simplify right side
    22,709.39x = 396,048,214.57
  5. Step 5: Solve for x
    x = 396,048,214.57/22,709.39
  6. Step 6: Final answer
    x = 17,439.84

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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.