Home / 28,085.23-42,136.95-8,363.95

Finding the Fourth Proportional to 28,085.23, 42,136.95 and 8,363.95

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Solution

The fourth proportional to 28,085.23, 42,136.95 and 8,363.95 is: 12,548.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085.23 : 42,136.95 = 8,363.95 : x
  2. Step 2: Convert to fraction form
    28,085.23/42,136.95 = 8,363.95/x
  3. Step 3: Cross multiply
    28,085.23x = 42,136.95 × 8,363.95
  4. Step 4: Simplify right side
    28,085.23x = 352,431,342.95
  5. Step 5: Solve for x
    x = 352,431,342.95/28,085.23
  6. Step 6: Final answer
    x = 12,548.64

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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.