Home / 21,459.33-32,178.78-6,668.46

Finding the Fourth Proportional to 21,459.33, 32,178.78 and 6,668.46

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Solution

The fourth proportional to 21,459.33, 32,178.78 and 6,668.46 is: 9,999.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,459.33 : 32,178.78 = 6,668.46 : x
  2. Step 2: Convert to fraction form
    21,459.33/32,178.78 = 6,668.46/x
  3. Step 3: Cross multiply
    21,459.33x = 32,178.78 × 6,668.46
  4. Step 4: Simplify right side
    21,459.33x = 214,582,907.28
  5. Step 5: Solve for x
    x = 214,582,907.28/21,459.33
  6. Step 6: Final answer
    x = 9,999.52

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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.