Home / 28,940.72-43,415.91-9,225.32

Finding the Fourth Proportional to 28,940.72, 43,415.91 and 9,225.32

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Solution

The fourth proportional to 28,940.72, 43,415.91 and 9,225.32 is: 13,839.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,940.72 : 43,415.91 = 9,225.32 : x
  2. Step 2: Convert to fraction form
    28,940.72/43,415.91 = 9,225.32/x
  3. Step 3: Cross multiply
    28,940.72x = 43,415.91 × 9,225.32
  4. Step 4: Simplify right side
    28,940.72x = 400,525,445.76
  5. Step 5: Solve for x
    x = 400,525,445.76/28,940.72
  6. Step 6: Final answer
    x = 13,839.51

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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.