Home / 28,905.48-43,312.86-17,212.32

Finding the Fourth Proportional to 28,905.48, 43,312.86 and 17,212.32

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Solution

The fourth proportional to 28,905.48, 43,312.86 and 17,212.32 is: 25,791.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,905.48 : 43,312.86 = 17,212.32 : x
  2. Step 2: Convert to fraction form
    28,905.48/43,312.86 = 17,212.32/x
  3. Step 3: Cross multiply
    28,905.48x = 43,312.86 × 17,212.32
  4. Step 4: Simplify right side
    28,905.48x = 745,514,806.44
  5. Step 5: Solve for x
    x = 745,514,806.44/28,905.48
  6. Step 6: Final answer
    x = 25,791.47

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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.