Home / 22,901.08-31,605.34-12,831.77

Finding the Fourth Proportional to 22,901.08, 31,605.34 and 12,831.77

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Solution

The fourth proportional to 22,901.08, 31,605.34 and 12,831.77 is: 17,708.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,901.08 : 31,605.34 = 12,831.77 : x
  2. Step 2: Convert to fraction form
    22,901.08/31,605.34 = 12,831.77/x
  3. Step 3: Cross multiply
    22,901.08x = 31,605.34 × 12,831.77
  4. Step 4: Simplify right side
    22,901.08x = 405,552,346.87
  5. Step 5: Solve for x
    x = 405,552,346.87/22,901.08
  6. Step 6: Final answer
    x = 17,708.87

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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.