Home / 23,091.12-31,865.76-13,660.32

Finding the Fourth Proportional to 23,091.12, 31,865.76 and 13,660.32

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Solution

The fourth proportional to 23,091.12, 31,865.76 and 13,660.32 is: 18,851.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,091.12 : 31,865.76 = 13,660.32 : x
  2. Step 2: Convert to fraction form
    23,091.12/31,865.76 = 13,660.32/x
  3. Step 3: Cross multiply
    23,091.12x = 31,865.76 × 13,660.32
  4. Step 4: Simplify right side
    23,091.12x = 435,296,478.64
  5. Step 5: Solve for x
    x = 435,296,478.64/23,091.12
  6. Step 6: Final answer
    x = 18,851.25

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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.