Home / 34,117.79-51,176.81-11,931.21

Finding the Fourth Proportional to 34,117.79, 51,176.81 and 11,931.21

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Solution

The fourth proportional to 34,117.79, 51,176.81 and 11,931.21 is: 17,896.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,117.79 : 51,176.81 = 11,931.21 : x
  2. Step 2: Convert to fraction form
    34,117.79/51,176.81 = 11,931.21/x
  3. Step 3: Cross multiply
    34,117.79x = 51,176.81 × 11,931.21
  4. Step 4: Simplify right side
    34,117.79x = 610,601,297.07
  5. Step 5: Solve for x
    x = 610,601,297.07/34,117.79
  6. Step 6: Final answer
    x = 17,896.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.