Home / 28,997.01-39,959.84-20,598.93

Finding the Fourth Proportional to 28,997.01, 39,959.84 and 20,598.93

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Solution

The fourth proportional to 28,997.01, 39,959.84 and 20,598.93 is: 28,386.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,997.01 : 39,959.84 = 20,598.93 : x
  2. Step 2: Convert to fraction form
    28,997.01/39,959.84 = 20,598.93/x
  3. Step 3: Cross multiply
    28,997.01x = 39,959.84 × 20,598.93
  4. Step 4: Simplify right side
    28,997.01x = 823,129,843.98
  5. Step 5: Solve for x
    x = 823,129,843.98/28,997.01
  6. Step 6: Final answer
    x = 28,386.71

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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.