Home / 27,831.62-38,458.49-20,264.76

Finding the Fourth Proportional to 27,831.62, 38,458.49 and 20,264.76

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Solution

The fourth proportional to 27,831.62, 38,458.49 and 20,264.76 is: 28,002.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,831.62 : 38,458.49 = 20,264.76 : x
  2. Step 2: Convert to fraction form
    27,831.62/38,458.49 = 20,264.76/x
  3. Step 3: Cross multiply
    27,831.62x = 38,458.49 × 20,264.76
  4. Step 4: Simplify right side
    27,831.62x = 779,352,112.71
  5. Step 5: Solve for x
    x = 779,352,112.71/27,831.62
  6. Step 6: Final answer
    x = 28,002.40

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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.