Home / 21,338.10-32,007.15-7,485.30

Finding the Fourth Proportional to 21,338.10, 32,007.15 and 7,485.30

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Solution

The fourth proportional to 21,338.10, 32,007.15 and 7,485.30 is: 11,227.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,338.10 : 32,007.15 = 7,485.30 : x
  2. Step 2: Convert to fraction form
    21,338.10/32,007.15 = 7,485.30/x
  3. Step 3: Cross multiply
    21,338.10x = 32,007.15 × 7,485.30
  4. Step 4: Simplify right side
    21,338.10x = 239,583,119.90
  5. Step 5: Solve for x
    x = 239,583,119.90/21,338.10
  6. Step 6: Final answer
    x = 11,227.95

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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.