Home / 21,645.63-32,485.46-11,115.23

Finding the Fourth Proportional to 21,645.63, 32,485.46 and 11,115.23

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Solution

The fourth proportional to 21,645.63, 32,485.46 and 11,115.23 is: 16,681.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,645.63 : 32,485.46 = 11,115.23 : x
  2. Step 2: Convert to fraction form
    21,645.63/32,485.46 = 11,115.23/x
  3. Step 3: Cross multiply
    21,645.63x = 32,485.46 × 11,115.23
  4. Step 4: Simplify right side
    21,645.63x = 361,083,141.55
  5. Step 5: Solve for x
    x = 361,083,141.55/21,645.63
  6. Step 6: Final answer
    x = 16,681.57

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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.