Home / 22,342.08-30,831.54-12,270.49

Finding the Fourth Proportional to 22,342.08, 30,831.54 and 12,270.49

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Solution

The fourth proportional to 22,342.08, 30,831.54 and 12,270.49 is: 16,932.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,342.08 : 30,831.54 = 12,270.49 : x
  2. Step 2: Convert to fraction form
    22,342.08/30,831.54 = 12,270.49/x
  3. Step 3: Cross multiply
    22,342.08x = 30,831.54 × 12,270.49
  4. Step 4: Simplify right side
    22,342.08x = 378,317,980.16
  5. Step 5: Solve for x
    x = 378,317,980.16/22,342.08
  6. Step 6: Final answer
    x = 16,932.98

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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.