Home / 20,136.08-30,159.96-14,274.92

Finding the Fourth Proportional to 20,136.08, 30,159.96 and 14,274.92

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Solution

The fourth proportional to 20,136.08, 30,159.96 and 14,274.92 is: 21,381.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,136.08 : 30,159.96 = 14,274.92 : x
  2. Step 2: Convert to fraction form
    20,136.08/30,159.96 = 14,274.92/x
  3. Step 3: Cross multiply
    20,136.08x = 30,159.96 × 14,274.92
  4. Step 4: Simplify right side
    20,136.08x = 430,531,016.20
  5. Step 5: Solve for x
    x = 430,531,016.20/20,136.08
  6. Step 6: Final answer
    x = 21,381.07

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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.