Home / 19,812.63-29,512.50-18,760.80

Finding the Fourth Proportional to 19,812.63, 29,512.50 and 18,760.80

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Solution

The fourth proportional to 19,812.63, 29,512.50 and 18,760.80 is: 27,945.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,812.63 : 29,512.50 = 18,760.80 : x
  2. Step 2: Convert to fraction form
    19,812.63/29,512.50 = 18,760.80/x
  3. Step 3: Cross multiply
    19,812.63x = 29,512.50 × 18,760.80
  4. Step 4: Simplify right side
    19,812.63x = 553,678,110
  5. Step 5: Solve for x
    x = 553,678,110/19,812.63
  6. Step 6: Final answer
    x = 27,945.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.