Home / 23,720.78-32,731.80-13,108.94

Finding the Fourth Proportional to 23,720.78, 32,731.80 and 13,108.94

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Solution

The fourth proportional to 23,720.78, 32,731.80 and 13,108.94 is: 18,088.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,720.78 : 32,731.80 = 13,108.94 : x
  2. Step 2: Convert to fraction form
    23,720.78/32,731.80 = 13,108.94/x
  3. Step 3: Cross multiply
    23,720.78x = 32,731.80 × 13,108.94
  4. Step 4: Simplify right side
    23,720.78x = 429,079,202.29
  5. Step 5: Solve for x
    x = 429,079,202.29/23,720.78
  6. Step 6: Final answer
    x = 18,088.75

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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.