Home / 20,283.02-27,989.88-11,330.46

Finding the Fourth Proportional to 20,283.02, 27,989.88 and 11,330.46

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Solution

The fourth proportional to 20,283.02, 27,989.88 and 11,330.46 is: 15,635.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,283.02 : 27,989.88 = 11,330.46 : x
  2. Step 2: Convert to fraction form
    20,283.02/27,989.88 = 11,330.46/x
  3. Step 3: Cross multiply
    20,283.02x = 27,989.88 × 11,330.46
  4. Step 4: Simplify right side
    20,283.02x = 317,138,215.74
  5. Step 5: Solve for x
    x = 317,138,215.74/20,283.02
  6. Step 6: Final answer
    x = 15,635.65

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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.