Home / 21,459.72-32,189.84-6,668.30

Finding the Fourth Proportional to 21,459.72, 32,189.84 and 6,668.30

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Solution

The fourth proportional to 21,459.72, 32,189.84 and 6,668.30 is: 10,002.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,459.72 : 32,189.84 = 6,668.30 : x
  2. Step 2: Convert to fraction form
    21,459.72/32,189.84 = 6,668.30/x
  3. Step 3: Cross multiply
    21,459.72x = 32,189.84 × 6,668.30
  4. Step 4: Simplify right side
    21,459.72x = 214,651,510.07
  5. Step 5: Solve for x
    x = 214,651,510.07/21,459.72
  6. Step 6: Final answer
    x = 10,002.53

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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.