Home / 19,920.87-29,798.08-13,997.34

Finding the Fourth Proportional to 19,920.87, 29,798.08 and 13,997.34

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Solution

The fourth proportional to 19,920.87, 29,798.08 and 13,997.34 is: 20,937.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920.87 : 29,798.08 = 13,997.34 : x
  2. Step 2: Convert to fraction form
    19,920.87/29,798.08 = 13,997.34/x
  3. Step 3: Cross multiply
    19,920.87x = 29,798.08 × 13,997.34
  4. Step 4: Simplify right side
    19,920.87x = 417,093,822.11
  5. Step 5: Solve for x
    x = 417,093,822.11/19,920.87
  6. Step 6: Final answer
    x = 20,937.53

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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.