Home / 10,420.80-15,628.72-3,023.32

Finding the Fourth Proportional to 10,420.80, 15,628.72 and 3,023.32

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Solution

The fourth proportional to 10,420.80, 15,628.72 and 3,023.32 is: 4,534.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,420.80 : 15,628.72 = 3,023.32 : x
  2. Step 2: Convert to fraction form
    10,420.80/15,628.72 = 3,023.32/x
  3. Step 3: Cross multiply
    10,420.80x = 15,628.72 × 3,023.32
  4. Step 4: Simplify right side
    10,420.80x = 47,250,621.75
  5. Step 5: Solve for x
    x = 47,250,621.75/10,420.80
  6. Step 6: Final answer
    x = 4,534.26

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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.