Home / 32,986.98-45,479.21-21,029.56

Finding the Fourth Proportional to 32,986.98, 45,479.21 and 21,029.56

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Solution

The fourth proportional to 32,986.98, 45,479.21 and 21,029.56 is: 28,993.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,986.98 : 45,479.21 = 21,029.56 : x
  2. Step 2: Convert to fraction form
    32,986.98/45,479.21 = 21,029.56/x
  3. Step 3: Cross multiply
    32,986.98x = 45,479.21 × 21,029.56
  4. Step 4: Simplify right side
    32,986.98x = 956,407,556.60
  5. Step 5: Solve for x
    x = 956,407,556.60/32,986.98
  6. Step 6: Final answer
    x = 28,993.49

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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.