Home / 28,991.21-43,489.53-9,265.07

Finding the Fourth Proportional to 28,991.21, 43,489.53 and 9,265.07

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Solution

The fourth proportional to 28,991.21, 43,489.53 and 9,265.07 is: 13,898.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,991.21 : 43,489.53 = 9,265.07 : x
  2. Step 2: Convert to fraction form
    28,991.21/43,489.53 = 9,265.07/x
  3. Step 3: Cross multiply
    28,991.21x = 43,489.53 × 9,265.07
  4. Step 4: Simplify right side
    28,991.21x = 402,933,322.27
  5. Step 5: Solve for x
    x = 402,933,322.27/28,991.21
  6. Step 6: Final answer
    x = 13,898.47

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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.