Home / 43,477.14-65,215.71-12,312.39

Finding the Fourth Proportional to 43,477.14, 65,215.71 and 12,312.39

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Solution

The fourth proportional to 43,477.14, 65,215.71 and 12,312.39 is: 18,468.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,477.14 : 65,215.71 = 12,312.39 : x
  2. Step 2: Convert to fraction form
    43,477.14/65,215.71 = 12,312.39/x
  3. Step 3: Cross multiply
    43,477.14x = 65,215.71 × 12,312.39
  4. Step 4: Simplify right side
    43,477.14x = 802,961,255.65
  5. Step 5: Solve for x
    x = 802,961,255.65/43,477.14
  6. Step 6: Final answer
    x = 18,468.59

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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.