Home / 28,986.28-39,991.68-16,237.52

Finding the Fourth Proportional to 28,986.28, 39,991.68 and 16,237.52

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Solution

The fourth proportional to 28,986.28, 39,991.68 and 16,237.52 is: 22,402.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,986.28 : 39,991.68 = 16,237.52 : x
  2. Step 2: Convert to fraction form
    28,986.28/39,991.68 = 16,237.52/x
  3. Step 3: Cross multiply
    28,986.28x = 39,991.68 × 16,237.52
  4. Step 4: Simplify right side
    28,986.28x = 649,365,703.83
  5. Step 5: Solve for x
    x = 649,365,703.83/28,986.28
  6. Step 6: Final answer
    x = 22,402.52

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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.