Home / 21,813.51-32,695.74-11,109.83

Finding the Fourth Proportional to 21,813.51, 32,695.74 and 11,109.83

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Solution

The fourth proportional to 21,813.51, 32,695.74 and 11,109.83 is: 16,652.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,813.51 : 32,695.74 = 11,109.83 : x
  2. Step 2: Convert to fraction form
    21,813.51/32,695.74 = 11,109.83/x
  3. Step 3: Cross multiply
    21,813.51x = 32,695.74 × 11,109.83
  4. Step 4: Simplify right side
    21,813.51x = 363,244,113.12
  5. Step 5: Solve for x
    x = 363,244,113.12/21,813.51
  6. Step 6: Final answer
    x = 16,652.25

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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.