Home / 20,459.64-30,716.82-19,795.35

Finding the Fourth Proportional to 20,459.64, 30,716.82 and 19,795.35

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Solution

The fourth proportional to 20,459.64, 30,716.82 and 19,795.35 is: 29,719.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,459.64 : 30,716.82 = 19,795.35 : x
  2. Step 2: Convert to fraction form
    20,459.64/30,716.82 = 19,795.35/x
  3. Step 3: Cross multiply
    20,459.64x = 30,716.82 × 19,795.35
  4. Step 4: Simplify right side
    20,459.64x = 608,050,202.79
  5. Step 5: Solve for x
    x = 608,050,202.79/20,459.64
  6. Step 6: Final answer
    x = 29,719.50

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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.