Home / 18,373.80-25,333.56-15,536.04

Finding the Fourth Proportional to 18,373.80, 25,333.56 and 15,536.04

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Solution

The fourth proportional to 18,373.80, 25,333.56 and 15,536.04 is: 21,420.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,373.80 : 25,333.56 = 15,536.04 : x
  2. Step 2: Convert to fraction form
    18,373.80/25,333.56 = 15,536.04/x
  3. Step 3: Cross multiply
    18,373.80x = 25,333.56 × 15,536.04
  4. Step 4: Simplify right side
    18,373.80x = 393,583,201.50
  5. Step 5: Solve for x
    x = 393,583,201.50/18,373.80
  6. Step 6: Final answer
    x = 21,420.89

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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.