Home / 22,831.32-31,507.44-13,400.04

Finding the Fourth Proportional to 22,831.32, 31,507.44 and 13,400.04

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Solution

The fourth proportional to 22,831.32, 31,507.44 and 13,400.04 is: 18,492.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,831.32 : 31,507.44 = 13,400.04 : x
  2. Step 2: Convert to fraction form
    22,831.32/31,507.44 = 13,400.04/x
  3. Step 3: Cross multiply
    22,831.32x = 31,507.44 × 13,400.04
  4. Step 4: Simplify right side
    22,831.32x = 422,200,956.30
  5. Step 5: Solve for x
    x = 422,200,956.30/22,831.32
  6. Step 6: Final answer
    x = 18,492.18

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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.