Home / 28,831.13-43,246.44-9,109.69

Finding the Fourth Proportional to 28,831.13, 43,246.44 and 9,109.69

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Solution

The fourth proportional to 28,831.13, 43,246.44 and 9,109.69 is: 13,664.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,831.13 : 43,246.44 = 9,109.69 : x
  2. Step 2: Convert to fraction form
    28,831.13/43,246.44 = 9,109.69/x
  3. Step 3: Cross multiply
    28,831.13x = 43,246.44 × 9,109.69
  4. Step 4: Simplify right side
    28,831.13x = 393,961,553.89
  5. Step 5: Solve for x
    x = 393,961,553.89/28,831.13
  6. Step 6: Final answer
    x = 13,664.45

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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.