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Finding the Fourth Proportional to 43,014.44, 64,448.86 and 20,838.44

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Solution

The fourth proportional to 43,014.44, 64,448.86 and 20,838.44 is: 31,222.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,014.44 : 64,448.86 = 20,838.44 : x
  2. Step 2: Convert to fraction form
    43,014.44/64,448.86 = 20,838.44/x
  3. Step 3: Cross multiply
    43,014.44x = 64,448.86 × 20,838.44
  4. Step 4: Simplify right side
    43,014.44x = 1,343,013,702.18
  5. Step 5: Solve for x
    x = 1,343,013,702.18/43,014.44
  6. Step 6: Final answer
    x = 31,222.39

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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.