Home / 35,987.62-49,649.53-20,871.81

Finding the Fourth Proportional to 35,987.62, 49,649.53 and 20,871.81

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Solution

The fourth proportional to 35,987.62, 49,649.53 and 20,871.81 is: 28,795.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,987.62 : 49,649.53 = 20,871.81 : x
  2. Step 2: Convert to fraction form
    35,987.62/49,649.53 = 20,871.81/x
  3. Step 3: Cross multiply
    35,987.62x = 49,649.53 × 20,871.81
  4. Step 4: Simplify right side
    35,987.62x = 1,036,275,556.75
  5. Step 5: Solve for x
    x = 1,036,275,556.75/35,987.62
  6. Step 6: Final answer
    x = 28,795.33

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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.