Home / 39,873.14-55,025.09-21,967.76

Finding the Fourth Proportional to 39,873.14, 55,025.09 and 21,967.76

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Solution

The fourth proportional to 39,873.14, 55,025.09 and 21,967.76 is: 30,315.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,873.14 : 55,025.09 = 21,967.76 : x
  2. Step 2: Convert to fraction form
    39,873.14/55,025.09 = 21,967.76/x
  3. Step 3: Cross multiply
    39,873.14x = 55,025.09 × 21,967.76
  4. Step 4: Simplify right side
    39,873.14x = 1,208,778,081.20
  5. Step 5: Solve for x
    x = 1,208,778,081.20/39,873.14
  6. Step 6: Final answer
    x = 30,315.59

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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.