Home / 17,792.28-26,688.78-13,639.74

Finding the Fourth Proportional to 17,792.28, 26,688.78 and 13,639.74

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Solution

The fourth proportional to 17,792.28, 26,688.78 and 13,639.74 is: 20,459.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,792.28 : 26,688.78 = 13,639.74 : x
  2. Step 2: Convert to fraction form
    17,792.28/26,688.78 = 13,639.74/x
  3. Step 3: Cross multiply
    17,792.28x = 26,688.78 × 13,639.74
  4. Step 4: Simplify right side
    17,792.28x = 364,028,020.12
  5. Step 5: Solve for x
    x = 364,028,020.12/17,792.28
  6. Step 6: Final answer
    x = 20,459.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.