Home / 27,129.54-40,739.47-18,301.69

Finding the Fourth Proportional to 27,129.54, 40,739.47 and 18,301.69

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Solution

The fourth proportional to 27,129.54, 40,739.47 and 18,301.69 is: 27,483.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,129.54 : 40,739.47 = 18,301.69 : x
  2. Step 2: Convert to fraction form
    27,129.54/40,739.47 = 18,301.69/x
  3. Step 3: Cross multiply
    27,129.54x = 40,739.47 × 18,301.69
  4. Step 4: Simplify right side
    27,129.54x = 745,601,258.82
  5. Step 5: Solve for x
    x = 745,601,258.82/27,129.54
  6. Step 6: Final answer
    x = 27,483.00

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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.