Home / 28,186.57-42,259.81-14,136.45

Finding the Fourth Proportional to 28,186.57, 42,259.81 and 14,136.45

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Solution

The fourth proportional to 28,186.57, 42,259.81 and 14,136.45 is: 21,194.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,186.57 : 42,259.81 = 14,136.45 : x
  2. Step 2: Convert to fraction form
    28,186.57/42,259.81 = 14,136.45/x
  3. Step 3: Cross multiply
    28,186.57x = 42,259.81 × 14,136.45
  4. Step 4: Simplify right side
    28,186.57x = 597,403,691.07
  5. Step 5: Solve for x
    x = 597,403,691.07/28,186.57
  6. Step 6: Final answer
    x = 21,194.62

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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.