Home / 28,322.07-42,480.35-8,600.80

Finding the Fourth Proportional to 28,322.07, 42,480.35 and 8,600.80

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Solution

The fourth proportional to 28,322.07, 42,480.35 and 8,600.80 is: 12,900.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,322.07 : 42,480.35 = 8,600.80 : x
  2. Step 2: Convert to fraction form
    28,322.07/42,480.35 = 8,600.80/x
  3. Step 3: Cross multiply
    28,322.07x = 42,480.35 × 8,600.80
  4. Step 4: Simplify right side
    28,322.07x = 365,365,005.36
  5. Step 5: Solve for x
    x = 365,365,005.36/28,322.07
  6. Step 6: Final answer
    x = 12,900.36

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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.