Home / 27,145.48-37,439.70-18,190.12

Finding the Fourth Proportional to 27,145.48, 37,439.70 and 18,190.12

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Solution

The fourth proportional to 27,145.48, 37,439.70 and 18,190.12 is: 25,088.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,145.48 : 37,439.70 = 18,190.12 : x
  2. Step 2: Convert to fraction form
    27,145.48/37,439.70 = 18,190.12/x
  3. Step 3: Cross multiply
    27,145.48x = 37,439.70 × 18,190.12
  4. Step 4: Simplify right side
    27,145.48x = 681,032,635.76
  5. Step 5: Solve for x
    x = 681,032,635.76/27,145.48
  6. Step 6: Final answer
    x = 25,088.25

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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.