Home / 28,388.95-42,588.60-9,668.10

Finding the Fourth Proportional to 28,388.95, 42,588.60 and 9,668.10

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Solution

The fourth proportional to 28,388.95, 42,588.60 and 9,668.10 is: 14,503.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,388.95 : 42,588.60 = 9,668.10 : x
  2. Step 2: Convert to fraction form
    28,388.95/42,588.60 = 9,668.10/x
  3. Step 3: Cross multiply
    28,388.95x = 42,588.60 × 9,668.10
  4. Step 4: Simplify right side
    28,388.95x = 411,750,843.66
  5. Step 5: Solve for x
    x = 411,750,843.66/28,388.95
  6. Step 6: Final answer
    x = 14,503.91

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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.