Home / 27,121.02-37,444.41-18,620.40

Finding the Fourth Proportional to 27,121.02, 37,444.41 and 18,620.40

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Solution

The fourth proportional to 27,121.02, 37,444.41 and 18,620.40 is: 25,708.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,121.02 : 37,444.41 = 18,620.40 : x
  2. Step 2: Convert to fraction form
    27,121.02/37,444.41 = 18,620.40/x
  3. Step 3: Cross multiply
    27,121.02x = 37,444.41 × 18,620.40
  4. Step 4: Simplify right side
    27,121.02x = 697,229,891.96
  5. Step 5: Solve for x
    x = 697,229,891.96/27,121.02
  6. Step 6: Final answer
    x = 25,708.10

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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.