Home / 28,322.09-42,480.38-8,600.81

Finding the Fourth Proportional to 28,322.09, 42,480.38 and 8,600.81

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Solution

The fourth proportional to 28,322.09, 42,480.38 and 8,600.81 is: 12,900.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,322.09 : 42,480.38 = 8,600.81 : x
  2. Step 2: Convert to fraction form
    28,322.09/42,480.38 = 8,600.81/x
  3. Step 3: Cross multiply
    28,322.09x = 42,480.38 × 8,600.81
  4. Step 4: Simplify right side
    28,322.09x = 365,365,677.11
  5. Step 5: Solve for x
    x = 365,365,677.11/28,322.09
  6. Step 6: Final answer
    x = 12,900.38

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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.