Home / 21,668.24-32,457.57-12,756.09

Finding the Fourth Proportional to 21,668.24, 32,457.57 and 12,756.09

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Solution

The fourth proportional to 21,668.24, 32,457.57 and 12,756.09 is: 19,107.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,668.24 : 32,457.57 = 12,756.09 : x
  2. Step 2: Convert to fraction form
    21,668.24/32,457.57 = 12,756.09/x
  3. Step 3: Cross multiply
    21,668.24x = 32,457.57 × 12,756.09
  4. Step 4: Simplify right side
    21,668.24x = 414,031,684.10
  5. Step 5: Solve for x
    x = 414,031,684.10/21,668.24
  6. Step 6: Final answer
    x = 19,107.77

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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.