Home / 15,989.28-22,094.56-15,221.10

Finding the Fourth Proportional to 15,989.28, 22,094.56 and 15,221.10

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Solution

The fourth proportional to 15,989.28, 22,094.56 and 15,221.10 is: 21,033.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,989.28 : 22,094.56 = 15,221.10 : x
  2. Step 2: Convert to fraction form
    15,989.28/22,094.56 = 15,221.10/x
  3. Step 3: Cross multiply
    15,989.28x = 22,094.56 × 15,221.10
  4. Step 4: Simplify right side
    15,989.28x = 336,303,507.22
  5. Step 5: Solve for x
    x = 336,303,507.22/15,989.28
  6. Step 6: Final answer
    x = 21,033.06

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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.