Home / 20,335.02-28,059.12-11,838.54

Finding the Fourth Proportional to 20,335.02, 28,059.12 and 11,838.54

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Solution

The fourth proportional to 20,335.02, 28,059.12 and 11,838.54 is: 16,335.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,335.02 : 28,059.12 = 11,838.54 : x
  2. Step 2: Convert to fraction form
    20,335.02/28,059.12 = 11,838.54/x
  3. Step 3: Cross multiply
    20,335.02x = 28,059.12 × 11,838.54
  4. Step 4: Simplify right side
    20,335.02x = 332,179,014.48
  5. Step 5: Solve for x
    x = 332,179,014.48/20,335.02
  6. Step 6: Final answer
    x = 16,335.32

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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.