Home / 31,399.79-43,330.14-17,253.14

Finding the Fourth Proportional to 31,399.79, 43,330.14 and 17,253.14

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Solution

The fourth proportional to 31,399.79, 43,330.14 and 17,253.14 is: 23,808.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,399.79 : 43,330.14 = 17,253.14 : x
  2. Step 2: Convert to fraction form
    31,399.79/43,330.14 = 17,253.14/x
  3. Step 3: Cross multiply
    31,399.79x = 43,330.14 × 17,253.14
  4. Step 4: Simplify right side
    31,399.79x = 747,580,754.99
  5. Step 5: Solve for x
    x = 747,580,754.99/31,399.79
  6. Step 6: Final answer
    x = 23,808.47

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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.