Home / 21,200.37-31,805.73-14,972.55

Finding the Fourth Proportional to 21,200.37, 31,805.73 and 14,972.55

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Solution

The fourth proportional to 21,200.37, 31,805.73 and 14,972.55 is: 22,462.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,200.37 : 31,805.73 = 14,972.55 : x
  2. Step 2: Convert to fraction form
    21,200.37/31,805.73 = 14,972.55/x
  3. Step 3: Cross multiply
    21,200.37x = 31,805.73 × 14,972.55
  4. Step 4: Simplify right side
    21,200.37x = 476,212,763.44
  5. Step 5: Solve for x
    x = 476,212,763.44/21,200.37
  6. Step 6: Final answer
    x = 22,462.48

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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.