Home / 28,136.60-42,176.10-16,443.80

Finding the Fourth Proportional to 28,136.60, 42,176.10 and 16,443.80

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Solution

The fourth proportional to 28,136.60, 42,176.10 and 16,443.80 is: 24,648.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,136.60 : 42,176.10 = 16,443.80 : x
  2. Step 2: Convert to fraction form
    28,136.60/42,176.10 = 16,443.80/x
  3. Step 3: Cross multiply
    28,136.60x = 42,176.10 × 16,443.80
  4. Step 4: Simplify right side
    28,136.60x = 693,535,353.18
  5. Step 5: Solve for x
    x = 693,535,353.18/28,136.60
  6. Step 6: Final answer
    x = 24,648.87

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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.