Home / 28,245.64-42,396-13,464.76

Finding the Fourth Proportional to 28,245.64, 42,396 and 13,464.76

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Solution

The fourth proportional to 28,245.64, 42,396 and 13,464.76 is: 20,210.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,245.64 : 42,396 = 13,464.76 : x
  2. Step 2: Convert to fraction form
    28,245.64/42,396 = 13,464.76/x
  3. Step 3: Cross multiply
    28,245.64x = 42,396 × 13,464.76
  4. Step 4: Simplify right side
    28,245.64x = 570,851,964.96
  5. Step 5: Solve for x
    x = 570,851,964.96/28,245.64
  6. Step 6: Final answer
    x = 20,210.27

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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.