Home / 34,111.08-51,136.38-13,318.92

Finding the Fourth Proportional to 34,111.08, 51,136.38 and 13,318.92

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Solution

The fourth proportional to 34,111.08, 51,136.38 and 13,318.92 is: 19,966.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,111.08 : 51,136.38 = 13,318.92 : x
  2. Step 2: Convert to fraction form
    34,111.08/51,136.38 = 13,318.92/x
  3. Step 3: Cross multiply
    34,111.08x = 51,136.38 × 13,318.92
  4. Step 4: Simplify right side
    34,111.08x = 681,081,354.31
  5. Step 5: Solve for x
    x = 681,081,354.31/34,111.08
  6. Step 6: Final answer
    x = 19,966.57

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1.5x scale

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.