Home / 27,192.38-37,555.89-18,720.50

Finding the Fourth Proportional to 27,192.38, 37,555.89 and 18,720.50

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Solution

The fourth proportional to 27,192.38, 37,555.89 and 18,720.50 is: 25,855.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,192.38 : 37,555.89 = 18,720.50 : x
  2. Step 2: Convert to fraction form
    27,192.38/37,555.89 = 18,720.50/x
  3. Step 3: Cross multiply
    27,192.38x = 37,555.89 × 18,720.50
  4. Step 4: Simplify right side
    27,192.38x = 703,065,038.75
  5. Step 5: Solve for x
    x = 703,065,038.75/27,192.38
  6. Step 6: Final answer
    x = 25,855.22

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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.