Home / 19,890.72-29,839.68-6,039.36

Finding the Fourth Proportional to 19,890.72, 29,839.68 and 6,039.36

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Solution

The fourth proportional to 19,890.72, 29,839.68 and 6,039.36 is: 9,060.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890.72 : 29,839.68 = 6,039.36 : x
  2. Step 2: Convert to fraction form
    19,890.72/29,839.68 = 6,039.36/x
  3. Step 3: Cross multiply
    19,890.72x = 29,839.68 × 6,039.36
  4. Step 4: Simplify right side
    19,890.72x = 180,212,569.80
  5. Step 5: Solve for x
    x = 180,212,569.80/19,890.72
  6. Step 6: Final answer
    x = 9,060.13

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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.