Home / 28,991.52-39,999.22-16,242.99

Finding the Fourth Proportional to 28,991.52, 39,999.22 and 16,242.99

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Solution

The fourth proportional to 28,991.52, 39,999.22 and 16,242.99 is: 22,410.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,991.52 : 39,999.22 = 16,242.99 : x
  2. Step 2: Convert to fraction form
    28,991.52/39,999.22 = 16,242.99/x
  3. Step 3: Cross multiply
    28,991.52x = 39,999.22 × 16,242.99
  4. Step 4: Simplify right side
    28,991.52x = 649,706,930.47
  5. Step 5: Solve for x
    x = 649,706,930.47/28,991.52
  6. Step 6: Final answer
    x = 22,410.24

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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.