Home / 20,888.08-28,805.94-16,653.22

Finding the Fourth Proportional to 20,888.08, 28,805.94 and 16,653.22

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Solution

The fourth proportional to 20,888.08, 28,805.94 and 16,653.22 is: 22,965.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,888.08 : 28,805.94 = 16,653.22 : x
  2. Step 2: Convert to fraction form
    20,888.08/28,805.94 = 16,653.22/x
  3. Step 3: Cross multiply
    20,888.08x = 28,805.94 × 16,653.22
  4. Step 4: Simplify right side
    20,888.08x = 479,711,656.13
  5. Step 5: Solve for x
    x = 479,711,656.13/20,888.08
  6. Step 6: Final answer
    x = 22,965.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.