Home / 27,128.16-40,565.28-19,313.28

Finding the Fourth Proportional to 27,128.16, 40,565.28 and 19,313.28

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Solution

The fourth proportional to 27,128.16, 40,565.28 and 19,313.28 is: 28,879.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,128.16 : 40,565.28 = 19,313.28 : x
  2. Step 2: Convert to fraction form
    27,128.16/40,565.28 = 19,313.28/x
  3. Step 3: Cross multiply
    27,128.16x = 40,565.28 × 19,313.28
  4. Step 4: Simplify right side
    27,128.16x = 783,448,610.92
  5. Step 5: Solve for x
    x = 783,448,610.92/27,128.16
  6. Step 6: Final answer
    x = 28,879.53

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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.