Home / 28,157.60-42,236.40-16,464.80

Finding the Fourth Proportional to 28,157.60, 42,236.40 and 16,464.80

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Solution

The fourth proportional to 28,157.60, 42,236.40 and 16,464.80 is: 24,697.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,157.60 : 42,236.40 = 16,464.80 : x
  2. Step 2: Convert to fraction form
    28,157.60/42,236.40 = 16,464.80/x
  3. Step 3: Cross multiply
    28,157.60x = 42,236.40 × 16,464.80
  4. Step 4: Simplify right side
    28,157.60x = 695,413,878.72
  5. Step 5: Solve for x
    x = 695,413,878.72/28,157.60
  6. Step 6: Final answer
    x = 24,697.20

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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.