Home / 20,295.02-27,992.30-13,568.78

Finding the Fourth Proportional to 20,295.02, 27,992.30 and 13,568.78

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Solution

The fourth proportional to 20,295.02, 27,992.30 and 13,568.78 is: 18,715.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,295.02 : 27,992.30 = 13,568.78 : x
  2. Step 2: Convert to fraction form
    20,295.02/27,992.30 = 13,568.78/x
  3. Step 3: Cross multiply
    20,295.02x = 27,992.30 × 13,568.78
  4. Step 4: Simplify right side
    20,295.02x = 379,821,360.39
  5. Step 5: Solve for x
    x = 379,821,360.39/20,295.02
  6. Step 6: Final answer
    x = 18,715.00

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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.