Home / 18,347.31-25,307.87-15,273.32

Finding the Fourth Proportional to 18,347.31, 25,307.87 and 15,273.32

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Solution

The fourth proportional to 18,347.31, 25,307.87 and 15,273.32 is: 21,067.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,347.31 : 25,307.87 = 15,273.32 : x
  2. Step 2: Convert to fraction form
    18,347.31/25,307.87 = 15,273.32/x
  3. Step 3: Cross multiply
    18,347.31x = 25,307.87 × 15,273.32
  4. Step 4: Simplify right side
    18,347.31x = 386,534,994.12
  5. Step 5: Solve for x
    x = 386,534,994.12/18,347.31
  6. Step 6: Final answer
    x = 21,067.67

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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.