Home / 22,903.21-31,606.39-12,831.71

Finding the Fourth Proportional to 22,903.21, 31,606.39 and 12,831.71

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Solution

The fourth proportional to 22,903.21, 31,606.39 and 12,831.71 is: 17,707.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,903.21 : 31,606.39 = 12,831.71 : x
  2. Step 2: Convert to fraction form
    22,903.21/31,606.39 = 12,831.71/x
  3. Step 3: Cross multiply
    22,903.21x = 31,606.39 × 12,831.71
  4. Step 4: Simplify right side
    22,903.21x = 405,564,077.56
  5. Step 5: Solve for x
    x = 405,564,077.56/22,903.21
  6. Step 6: Final answer
    x = 17,707.74

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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.