Home / 31,439.70-43,386.14-17,099.81

Finding the Fourth Proportional to 31,439.70, 43,386.14 and 17,099.81

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Solution

The fourth proportional to 31,439.70, 43,386.14 and 17,099.81 is: 23,597.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,439.70 : 43,386.14 = 17,099.81 : x
  2. Step 2: Convert to fraction form
    31,439.70/43,386.14 = 17,099.81/x
  3. Step 3: Cross multiply
    31,439.70x = 43,386.14 × 17,099.81
  4. Step 4: Simplify right side
    31,439.70x = 741,894,773.60
  5. Step 5: Solve for x
    x = 741,894,773.60/31,439.70
  6. Step 6: Final answer
    x = 23,597.39

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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.