Home / 28,097.72-38,774.84-15,351.00

Finding the Fourth Proportional to 28,097.72, 38,774.84 and 15,351.00

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Solution

The fourth proportional to 28,097.72, 38,774.84 and 15,351.00 is: 21,184.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,097.72 : 38,774.84 = 15,351.00 : x
  2. Step 2: Convert to fraction form
    28,097.72/38,774.84 = 15,351.00/x
  3. Step 3: Cross multiply
    28,097.72x = 38,774.84 × 15,351.00
  4. Step 4: Simplify right side
    28,097.72x = 595,232,346.68
  5. Step 5: Solve for x
    x = 595,232,346.68/28,097.72
  6. Step 6: Final answer
    x = 21,184.37

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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.