Home / 28,930.64-43,395.45-9,208.96

Finding the Fourth Proportional to 28,930.64, 43,395.45 and 9,208.96

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Solution

The fourth proportional to 28,930.64, 43,395.45 and 9,208.96 is: 13,813.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,930.64 : 43,395.45 = 9,208.96 : x
  2. Step 2: Convert to fraction form
    28,930.64/43,395.45 = 9,208.96/x
  3. Step 3: Cross multiply
    28,930.64x = 43,395.45 × 9,208.96
  4. Step 4: Simplify right side
    28,930.64x = 399,626,820.21
  5. Step 5: Solve for x
    x = 399,626,820.21/28,930.64
  6. Step 6: Final answer
    x = 13,813.28

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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.