Home / 20,036.01-27,649.97-12,485.40

Finding the Fourth Proportional to 20,036.01, 27,649.97 and 12,485.40

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Solution

The fourth proportional to 20,036.01, 27,649.97 and 12,485.40 is: 17,230.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,036.01 : 27,649.97 = 12,485.40 : x
  2. Step 2: Convert to fraction form
    20,036.01/27,649.97 = 12,485.40/x
  3. Step 3: Cross multiply
    20,036.01x = 27,649.97 × 12,485.40
  4. Step 4: Simplify right side
    20,036.01x = 345,220,935.44
  5. Step 5: Solve for x
    x = 345,220,935.44/20,036.01
  6. Step 6: Final answer
    x = 17,230.02

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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.