Home / 39,668.13-54,740.21-21,762.77

Finding the Fourth Proportional to 39,668.13, 54,740.21 and 21,762.77

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Solution

The fourth proportional to 39,668.13, 54,740.21 and 21,762.77 is: 30,031.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,668.13 : 54,740.21 = 21,762.77 : x
  2. Step 2: Convert to fraction form
    39,668.13/54,740.21 = 21,762.77/x
  3. Step 3: Cross multiply
    39,668.13x = 54,740.21 × 21,762.77
  4. Step 4: Simplify right side
    39,668.13x = 1,191,298,217.47
  5. Step 5: Solve for x
    x = 1,191,298,217.47/39,668.13
  6. Step 6: Final answer
    x = 30,031.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.