Home / 28,072.10-38,740.95-16,136.54

Finding the Fourth Proportional to 28,072.10, 38,740.95 and 16,136.54

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Solution

The fourth proportional to 28,072.10, 38,740.95 and 16,136.54 is: 22,269.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072.10 : 38,740.95 = 16,136.54 : x
  2. Step 2: Convert to fraction form
    28,072.10/38,740.95 = 16,136.54/x
  3. Step 3: Cross multiply
    28,072.10x = 38,740.95 × 16,136.54
  4. Step 4: Simplify right side
    28,072.10x = 625,144,695.61
  5. Step 5: Solve for x
    x = 625,144,695.61/28,072.10
  6. Step 6: Final answer
    x = 22,269.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.