Home / 23,119.92-31,905.36-12,509.32

Finding the Fourth Proportional to 23,119.92, 31,905.36 and 12,509.32

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Solution

The fourth proportional to 23,119.92, 31,905.36 and 12,509.32 is: 17,262.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,119.92 : 31,905.36 = 12,509.32 : x
  2. Step 2: Convert to fraction form
    23,119.92/31,905.36 = 12,509.32/x
  3. Step 3: Cross multiply
    23,119.92x = 31,905.36 × 12,509.32
  4. Step 4: Simplify right side
    23,119.92x = 399,114,357.96
  5. Step 5: Solve for x
    x = 399,114,357.96/23,119.92
  6. Step 6: Final answer
    x = 17,262.79

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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.