Home / 19,920.27-29,831.12-11,574.98

Finding the Fourth Proportional to 19,920.27, 29,831.12 and 11,574.98

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Solution

The fourth proportional to 19,920.27, 29,831.12 and 11,574.98 is: 17,333.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920.27 : 29,831.12 = 11,574.98 : x
  2. Step 2: Convert to fraction form
    19,920.27/29,831.12 = 11,574.98/x
  3. Step 3: Cross multiply
    19,920.27x = 29,831.12 × 11,574.98
  4. Step 4: Simplify right side
    19,920.27x = 345,294,617.38
  5. Step 5: Solve for x
    x = 345,294,617.38/19,920.27
  6. Step 6: Final answer
    x = 17,333.83

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1.5x scale

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.