Home / 20,257.36-30,365.18-7,774.06

Finding the Fourth Proportional to 20,257.36, 30,365.18 and 7,774.06

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Solution

The fourth proportional to 20,257.36, 30,365.18 and 7,774.06 is: 11,653.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,257.36 : 30,365.18 = 7,774.06 : x
  2. Step 2: Convert to fraction form
    20,257.36/30,365.18 = 7,774.06/x
  3. Step 3: Cross multiply
    20,257.36x = 30,365.18 × 7,774.06
  4. Step 4: Simplify right side
    20,257.36x = 236,060,579.40
  5. Step 5: Solve for x
    x = 236,060,579.40/20,257.36
  6. Step 6: Final answer
    x = 11,653.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.