Home / 19,688.90-27,170.71-11,622.92

Finding the Fourth Proportional to 19,688.90, 27,170.71 and 11,622.92

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Solution

The fourth proportional to 19,688.90, 27,170.71 and 11,622.92 is: 16,039.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,688.90 : 27,170.71 = 11,622.92 : x
  2. Step 2: Convert to fraction form
    19,688.90/27,170.71 = 11,622.92/x
  3. Step 3: Cross multiply
    19,688.90x = 27,170.71 × 11,622.92
  4. Step 4: Simplify right side
    19,688.90x = 315,802,823.76
  5. Step 5: Solve for x
    x = 315,802,823.76/19,688.90
  6. Step 6: Final answer
    x = 16,039.64

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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.