Home / 27,475.20-37,942.72-18,999.04

Finding the Fourth Proportional to 27,475.20, 37,942.72 and 18,999.04

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Solution

The fourth proportional to 27,475.20, 37,942.72 and 18,999.04 is: 26,237.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,475.20 : 37,942.72 = 18,999.04 : x
  2. Step 2: Convert to fraction form
    27,475.20/37,942.72 = 18,999.04/x
  3. Step 3: Cross multiply
    27,475.20x = 37,942.72 × 18,999.04
  4. Step 4: Simplify right side
    27,475.20x = 720,875,254.99
  5. Step 5: Solve for x
    x = 720,875,254.99/27,475.20
  6. Step 6: Final answer
    x = 26,237.31

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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.