Home / 23,731.20-32,749.26-13,121.28

Finding the Fourth Proportional to 23,731.20, 32,749.26 and 13,121.28

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Solution

The fourth proportional to 23,731.20, 32,749.26 and 13,121.28 is: 18,107.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,731.20 : 32,749.26 = 13,121.28 : x
  2. Step 2: Convert to fraction form
    23,731.20/32,749.26 = 13,121.28/x
  3. Step 3: Cross multiply
    23,731.20x = 32,749.26 × 13,121.28
  4. Step 4: Simplify right side
    23,731.20x = 429,712,210.25
  5. Step 5: Solve for x
    x = 429,712,210.25/23,731.20
  6. Step 6: Final answer
    x = 18,107.48

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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.