Home / 19,706.71-27,224.87-12,916.84

Finding the Fourth Proportional to 19,706.71, 27,224.87 and 12,916.84

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Solution

The fourth proportional to 19,706.71, 27,224.87 and 12,916.84 is: 17,844.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,706.71 : 27,224.87 = 12,916.84 : x
  2. Step 2: Convert to fraction form
    19,706.71/27,224.87 = 12,916.84/x
  3. Step 3: Cross multiply
    19,706.71x = 27,224.87 × 12,916.84
  4. Step 4: Simplify right side
    19,706.71x = 351,659,289.81
  5. Step 5: Solve for x
    x = 351,659,289.81/19,706.71
  6. Step 6: Final answer
    x = 17,844.65

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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.