Home / 19,136.91-28,705.38-10,427.19

Finding the Fourth Proportional to 19,136.91, 28,705.38 and 10,427.19

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Solution

The fourth proportional to 19,136.91, 28,705.38 and 10,427.19 is: 15,640.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,136.91 : 28,705.38 = 10,427.19 : x
  2. Step 2: Convert to fraction form
    19,136.91/28,705.38 = 10,427.19/x
  3. Step 3: Cross multiply
    19,136.91x = 28,705.38 × 10,427.19
  4. Step 4: Simplify right side
    19,136.91x = 299,316,451.28
  5. Step 5: Solve for x
    x = 299,316,451.28/19,136.91
  6. Step 6: Final answer
    x = 15,640.79

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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.