Home / 22,661.40-31,269.27-12,588.92

Finding the Fourth Proportional to 22,661.40, 31,269.27 and 12,588.92

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Solution

The fourth proportional to 22,661.40, 31,269.27 and 12,588.92 is: 17,370.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,661.40 : 31,269.27 = 12,588.92 : x
  2. Step 2: Convert to fraction form
    22,661.40/31,269.27 = 12,588.92/x
  3. Step 3: Cross multiply
    22,661.40x = 31,269.27 × 12,588.92
  4. Step 4: Simplify right side
    22,661.40x = 393,646,338.49
  5. Step 5: Solve for x
    x = 393,646,338.49/22,661.40
  6. Step 6: Final answer
    x = 17,370.79

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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.