Home / 28,749.77-43,124.64-12,936.32

Finding the Fourth Proportional to 28,749.77, 43,124.64 and 12,936.32

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Solution

The fourth proportional to 28,749.77, 43,124.64 and 12,936.32 is: 19,404.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749.77 : 43,124.64 = 12,936.32 : x
  2. Step 2: Convert to fraction form
    28,749.77/43,124.64 = 12,936.32/x
  3. Step 3: Cross multiply
    28,749.77x = 43,124.64 × 12,936.32
  4. Step 4: Simplify right side
    28,749.77x = 557,873,927.30
  5. Step 5: Solve for x
    x = 557,873,927.30/28,749.77
  6. Step 6: Final answer
    x = 19,404.47

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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.