Home / 27,368.01-37,785.09-20,982.76

Finding the Fourth Proportional to 27,368.01, 37,785.09 and 20,982.76

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Solution

The fourth proportional to 27,368.01, 37,785.09 and 20,982.76 is: 28,969.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,368.01 : 37,785.09 = 20,982.76 : x
  2. Step 2: Convert to fraction form
    27,368.01/37,785.09 = 20,982.76/x
  3. Step 3: Cross multiply
    27,368.01x = 37,785.09 × 20,982.76
  4. Step 4: Simplify right side
    27,368.01x = 792,835,301.90
  5. Step 5: Solve for x
    x = 792,835,301.90/27,368.01
  6. Step 6: Final answer
    x = 28,969.42

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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.