Home / 28,991.47-40,027.72-18,106.19

Finding the Fourth Proportional to 28,991.47, 40,027.72 and 18,106.19

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Solution

The fourth proportional to 28,991.47, 40,027.72 and 18,106.19 is: 24,998.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,991.47 : 40,027.72 = 18,106.19 : x
  2. Step 2: Convert to fraction form
    28,991.47/40,027.72 = 18,106.19/x
  3. Step 3: Cross multiply
    28,991.47x = 40,027.72 × 18,106.19
  4. Step 4: Simplify right side
    28,991.47x = 724,749,212.92
  5. Step 5: Solve for x
    x = 724,749,212.92/28,991.47
  6. Step 6: Final answer
    x = 24,998.71

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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.