Home / 31,320.44-43,220.64-17,172.92

Finding the Fourth Proportional to 31,320.44, 43,220.64 and 17,172.92

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Solution

The fourth proportional to 31,320.44, 43,220.64 and 17,172.92 is: 23,697.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,320.44 : 43,220.64 = 17,172.92 : x
  2. Step 2: Convert to fraction form
    31,320.44/43,220.64 = 17,172.92/x
  3. Step 3: Cross multiply
    31,320.44x = 43,220.64 × 17,172.92
  4. Step 4: Simplify right side
    31,320.44x = 742,224,593.07
  5. Step 5: Solve for x
    x = 742,224,593.07/31,320.44
  6. Step 6: Final answer
    x = 23,697.77

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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.