Home / 20,762.38-31,145.19-6,717.25

Finding the Fourth Proportional to 20,762.38, 31,145.19 and 6,717.25

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Solution

The fourth proportional to 20,762.38, 31,145.19 and 6,717.25 is: 10,076.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762.38 : 31,145.19 = 6,717.25 : x
  2. Step 2: Convert to fraction form
    20,762.38/31,145.19 = 6,717.25/x
  3. Step 3: Cross multiply
    20,762.38x = 31,145.19 × 6,717.25
  4. Step 4: Simplify right side
    20,762.38x = 209,210,027.53
  5. Step 5: Solve for x
    x = 209,210,027.53/20,762.38
  6. Step 6: Final answer
    x = 10,076.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.