Home / 36,986.79-51,039.21-20,854.68

Finding the Fourth Proportional to 36,986.79, 51,039.21 and 20,854.68

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Solution

The fourth proportional to 36,986.79, 51,039.21 and 20,854.68 is: 28,778.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,986.79 : 51,039.21 = 20,854.68 : x
  2. Step 2: Convert to fraction form
    36,986.79/51,039.21 = 20,854.68/x
  3. Step 3: Cross multiply
    36,986.79x = 51,039.21 × 20,854.68
  4. Step 4: Simplify right side
    36,986.79x = 1,064,406,392.00
  5. Step 5: Solve for x
    x = 1,064,406,392.00/36,986.79
  6. Step 6: Final answer
    x = 28,778.01

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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.