Home / 31,451.79-43,403.14-17,112.06

Finding the Fourth Proportional to 31,451.79, 43,403.14 and 17,112.06

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Solution

The fourth proportional to 31,451.79, 43,403.14 and 17,112.06 is: 23,614.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,451.79 : 43,403.14 = 17,112.06 : x
  2. Step 2: Convert to fraction form
    31,451.79/43,403.14 = 17,112.06/x
  3. Step 3: Cross multiply
    31,451.79x = 43,403.14 × 17,112.06
  4. Step 4: Simplify right side
    31,451.79x = 742,717,157.26
  5. Step 5: Solve for x
    x = 742,717,157.26/31,451.79
  6. Step 6: Final answer
    x = 23,614.46

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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.