Home / 28,206.53-42,302.81-11,571.20

Finding the Fourth Proportional to 28,206.53, 42,302.81 and 11,571.20

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Solution

The fourth proportional to 28,206.53, 42,302.81 and 11,571.20 is: 17,353.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,206.53 : 42,302.81 = 11,571.20 : x
  2. Step 2: Convert to fraction form
    28,206.53/42,302.81 = 11,571.20/x
  3. Step 3: Cross multiply
    28,206.53x = 42,302.81 × 11,571.20
  4. Step 4: Simplify right side
    28,206.53x = 489,494,423.99
  5. Step 5: Solve for x
    x = 489,494,423.99/28,206.53
  6. Step 6: Final answer
    x = 17,353.94

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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.