Home / 20,037.61-27,652.17-12,486.99

Finding the Fourth Proportional to 20,037.61, 27,652.17 and 12,486.99

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Solution

The fourth proportional to 20,037.61, 27,652.17 and 12,486.99 is: 17,232.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,037.61 : 27,652.17 = 12,486.99 : x
  2. Step 2: Convert to fraction form
    20,037.61/27,652.17 = 12,486.99/x
  3. Step 3: Cross multiply
    20,037.61x = 27,652.17 × 12,486.99
  4. Step 4: Simplify right side
    20,037.61x = 345,292,370.27
  5. Step 5: Solve for x
    x = 345,292,370.27/20,037.61
  6. Step 6: Final answer
    x = 17,232.21

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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.