Home / 20,292.02-28,004.28-11,339.56

Finding the Fourth Proportional to 20,292.02, 28,004.28 and 11,339.56

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Solution

The fourth proportional to 20,292.02, 28,004.28 and 11,339.56 is: 15,649.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,292.02 : 28,004.28 = 11,339.56 : x
  2. Step 2: Convert to fraction form
    20,292.02/28,004.28 = 11,339.56/x
  3. Step 3: Cross multiply
    20,292.02x = 28,004.28 × 11,339.56
  4. Step 4: Simplify right side
    20,292.02x = 317,556,073.30
  5. Step 5: Solve for x
    x = 317,556,073.30/20,292.02
  6. Step 6: Final answer
    x = 15,649.31

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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.