Home / 22,639.84-31,239.60-12,701.92

Finding the Fourth Proportional to 22,639.84, 31,239.60 and 12,701.92

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Solution

The fourth proportional to 22,639.84, 31,239.60 and 12,701.92 is: 17,526.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,639.84 : 31,239.60 = 12,701.92 : x
  2. Step 2: Convert to fraction form
    22,639.84/31,239.60 = 12,701.92/x
  3. Step 3: Cross multiply
    22,639.84x = 31,239.60 × 12,701.92
  4. Step 4: Simplify right side
    22,639.84x = 396,802,900.03
  5. Step 5: Solve for x
    x = 396,802,900.03/22,639.84
  6. Step 6: Final answer
    x = 17,526.75

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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.