Home / 19,931.87-29,877.29-8,843.78

Finding the Fourth Proportional to 19,931.87, 29,877.29 and 8,843.78

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Solution

The fourth proportional to 19,931.87, 29,877.29 and 8,843.78 is: 13,256.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931.87 : 29,877.29 = 8,843.78 : x
  2. Step 2: Convert to fraction form
    19,931.87/29,877.29 = 8,843.78/x
  3. Step 3: Cross multiply
    19,931.87x = 29,877.29 × 8,843.78
  4. Step 4: Simplify right side
    19,931.87x = 264,228,243.39
  5. Step 5: Solve for x
    x = 264,228,243.39/19,931.87
  6. Step 6: Final answer
    x = 13,256.57

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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.