Home / 31,767.78-43,840.36-17,428.26

Finding the Fourth Proportional to 31,767.78, 43,840.36 and 17,428.26

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Solution

The fourth proportional to 31,767.78, 43,840.36 and 17,428.26 is: 24,051.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,767.78 : 43,840.36 = 17,428.26 : x
  2. Step 2: Convert to fraction form
    31,767.78/43,840.36 = 17,428.26/x
  3. Step 3: Cross multiply
    31,767.78x = 43,840.36 × 17,428.26
  4. Step 4: Simplify right side
    31,767.78x = 764,061,192.57
  5. Step 5: Solve for x
    x = 764,061,192.57/31,767.78
  6. Step 6: Final answer
    x = 24,051.45

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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.