Home / 30,277.26-45,396.45-20,890.98

Finding the Fourth Proportional to 30,277.26, 45,396.45 and 20,890.98

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Solution

The fourth proportional to 30,277.26, 45,396.45 and 20,890.98 is: 31,323.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,277.26 : 45,396.45 = 20,890.98 : x
  2. Step 2: Convert to fraction form
    30,277.26/45,396.45 = 20,890.98/x
  3. Step 3: Cross multiply
    30,277.26x = 45,396.45 × 20,890.98
  4. Step 4: Simplify right side
    30,277.26x = 948,376,329.02
  5. Step 5: Solve for x
    x = 948,376,329.02/30,277.26
  6. Step 6: Final answer
    x = 31,323.06

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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.