Home / 37,875.87-52,268.36-20,879.78

Finding the Fourth Proportional to 37,875.87, 52,268.36 and 20,879.78

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Solution

The fourth proportional to 37,875.87, 52,268.36 and 20,879.78 is: 28,813.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,875.87 : 52,268.36 = 20,879.78 : x
  2. Step 2: Convert to fraction form
    37,875.87/52,268.36 = 20,879.78/x
  3. Step 3: Cross multiply
    37,875.87x = 52,268.36 × 20,879.78
  4. Step 4: Simplify right side
    37,875.87x = 1,091,351,492.02
  5. Step 5: Solve for x
    x = 1,091,351,492.02/37,875.87
  6. Step 6: Final answer
    x = 28,813.90

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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.