Home / 28,410.38-42,577.30-10,870.64

Finding the Fourth Proportional to 28,410.38, 42,577.30 and 10,870.64

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Solution

The fourth proportional to 28,410.38, 42,577.30 and 10,870.64 is: 16,291.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,410.38 : 42,577.30 = 10,870.64 : x
  2. Step 2: Convert to fraction form
    28,410.38/42,577.30 = 10,870.64/x
  3. Step 3: Cross multiply
    28,410.38x = 42,577.30 × 10,870.64
  4. Step 4: Simplify right side
    28,410.38x = 462,842,399.69
  5. Step 5: Solve for x
    x = 462,842,399.69/28,410.38
  6. Step 6: Final answer
    x = 16,291.31

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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.