Home / 35,778.09-53,668.66-12,086.20

Finding the Fourth Proportional to 35,778.09, 53,668.66 and 12,086.20

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Solution

The fourth proportional to 35,778.09, 53,668.66 and 12,086.20 is: 18,129.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,778.09 : 53,668.66 = 12,086.20 : x
  2. Step 2: Convert to fraction form
    35,778.09/53,668.66 = 12,086.20/x
  3. Step 3: Cross multiply
    35,778.09x = 53,668.66 × 12,086.20
  4. Step 4: Simplify right side
    35,778.09x = 648,650,158.49
  5. Step 5: Solve for x
    x = 648,650,158.49/35,778.09
  6. Step 6: Final answer
    x = 18,129.82

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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.