Home / 28,136.48-42,196.21-9,411.71

Finding the Fourth Proportional to 28,136.48, 42,196.21 and 9,411.71

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Solution

The fourth proportional to 28,136.48, 42,196.21 and 9,411.71 is: 14,114.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,136.48 : 42,196.21 = 9,411.71 : x
  2. Step 2: Convert to fraction form
    28,136.48/42,196.21 = 9,411.71/x
  3. Step 3: Cross multiply
    28,136.48x = 42,196.21 × 9,411.71
  4. Step 4: Simplify right side
    28,136.48x = 397,138,491.62
  5. Step 5: Solve for x
    x = 397,138,491.62/28,136.48
  6. Step 6: Final answer
    x = 14,114.72

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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.