Home / 43,420.84-65,029.18-21,164.46

Finding the Fourth Proportional to 43,420.84, 65,029.18 and 21,164.46

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Solution

The fourth proportional to 43,420.84, 65,029.18 and 21,164.46 is: 31,696.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,420.84 : 65,029.18 = 21,164.46 : x
  2. Step 2: Convert to fraction form
    43,420.84/65,029.18 = 21,164.46/x
  3. Step 3: Cross multiply
    43,420.84x = 65,029.18 × 21,164.46
  4. Step 4: Simplify right side
    43,420.84x = 1,376,307,478.94
  5. Step 5: Solve for x
    x = 1,376,307,478.94/43,420.84
  6. Step 6: Final answer
    x = 31,696.93

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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.