Home / 20,040.23-27,650.54-12,958.13

Finding the Fourth Proportional to 20,040.23, 27,650.54 and 12,958.13

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Solution

The fourth proportional to 20,040.23, 27,650.54 and 12,958.13 is: 17,879.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.23 : 27,650.54 = 12,958.13 : x
  2. Step 2: Convert to fraction form
    20,040.23/27,650.54 = 12,958.13/x
  3. Step 3: Cross multiply
    20,040.23x = 27,650.54 × 12,958.13
  4. Step 4: Simplify right side
    20,040.23x = 358,299,291.89
  5. Step 5: Solve for x
    x = 358,299,291.89/20,040.23
  6. Step 6: Final answer
    x = 17,879.00

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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.