Home / 21,410.80-32,120.92-6,417.32

Finding the Fourth Proportional to 21,410.80, 32,120.92 and 6,417.32

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Solution

The fourth proportional to 21,410.80, 32,120.92 and 6,417.32 is: 9,627.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,410.80 : 32,120.92 = 6,417.32 : x
  2. Step 2: Convert to fraction form
    21,410.80/32,120.92 = 6,417.32/x
  3. Step 3: Cross multiply
    21,410.80x = 32,120.92 × 6,417.32
  4. Step 4: Simplify right side
    21,410.80x = 206,130,045.69
  5. Step 5: Solve for x
    x = 206,130,045.69/21,410.80
  6. Step 6: Final answer
    x = 9,627.39

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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.