Home / 28,973.63-43,460.45-18,650.99

Finding the Fourth Proportional to 28,973.63, 43,460.45 and 18,650.99

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Solution

The fourth proportional to 28,973.63, 43,460.45 and 18,650.99 is: 27,976.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,973.63 : 43,460.45 = 18,650.99 : x
  2. Step 2: Convert to fraction form
    28,973.63/43,460.45 = 18,650.99/x
  3. Step 3: Cross multiply
    28,973.63x = 43,460.45 × 18,650.99
  4. Step 4: Simplify right side
    28,973.63x = 810,580,418.35
  5. Step 5: Solve for x
    x = 810,580,418.35/28,973.63
  6. Step 6: Final answer
    x = 27,976.49

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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.