Home / 23,056.08-31,817.52-13,120.08

Finding the Fourth Proportional to 23,056.08, 31,817.52 and 13,120.08

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Solution

The fourth proportional to 23,056.08, 31,817.52 and 13,120.08 is: 18,105.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,056.08 : 31,817.52 = 13,120.08 : x
  2. Step 2: Convert to fraction form
    23,056.08/31,817.52 = 13,120.08/x
  3. Step 3: Cross multiply
    23,056.08x = 31,817.52 × 13,120.08
  4. Step 4: Simplify right side
    23,056.08x = 417,448,407.80
  5. Step 5: Solve for x
    x = 417,448,407.80/23,056.08
  6. Step 6: Final answer
    x = 18,105.78

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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.