Home / 30,031.02-41,452.66-21,080.72

Finding the Fourth Proportional to 30,031.02, 41,452.66 and 21,080.72

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Solution

The fourth proportional to 30,031.02, 41,452.66 and 21,080.72 is: 29,098.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,031.02 : 41,452.66 = 21,080.72 : x
  2. Step 2: Convert to fraction form
    30,031.02/41,452.66 = 21,080.72/x
  3. Step 3: Cross multiply
    30,031.02x = 41,452.66 × 21,080.72
  4. Step 4: Simplify right side
    30,031.02x = 873,851,918.72
  5. Step 5: Solve for x
    x = 873,851,918.72/30,031.02
  6. Step 6: Final answer
    x = 29,098.31

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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.