Home / 19,772.38-29,458.89-18,831.97

Finding the Fourth Proportional to 19,772.38, 29,458.89 and 18,831.97

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Solution

The fourth proportional to 19,772.38, 29,458.89 and 18,831.97 is: 28,057.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,772.38 : 29,458.89 = 18,831.97 : x
  2. Step 2: Convert to fraction form
    19,772.38/29,458.89 = 18,831.97/x
  3. Step 3: Cross multiply
    19,772.38x = 29,458.89 × 18,831.97
  4. Step 4: Simplify right side
    19,772.38x = 554,768,932.71
  5. Step 5: Solve for x
    x = 554,768,932.71/19,772.38
  6. Step 6: Final answer
    x = 28,057.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.