Home / 18,202.78-25,056.66-15,693.20

Finding the Fourth Proportional to 18,202.78, 25,056.66 and 15,693.20

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Solution

The fourth proportional to 18,202.78, 25,056.66 and 15,693.20 is: 21,602.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,202.78 : 25,056.66 = 15,693.20 : x
  2. Step 2: Convert to fraction form
    18,202.78/25,056.66 = 15,693.20/x
  3. Step 3: Cross multiply
    18,202.78x = 25,056.66 × 15,693.20
  4. Step 4: Simplify right side
    18,202.78x = 393,219,176.71
  5. Step 5: Solve for x
    x = 393,219,176.71/18,202.78
  6. Step 6: Final answer
    x = 21,602.15

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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.