Home / 42,916.75-64,379.58-11,752

Finding the Fourth Proportional to 42,916.75, 64,379.58 and 11,752

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Solution

The fourth proportional to 42,916.75, 64,379.58 and 11,752 is: 17,629.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,916.75 : 64,379.58 = 11,752 : x
  2. Step 2: Convert to fraction form
    42,916.75/64,379.58 = 11,752/x
  3. Step 3: Cross multiply
    42,916.75x = 64,379.58 × 11,752
  4. Step 4: Simplify right side
    42,916.75x = 756,588,824.16
  5. Step 5: Solve for x
    x = 756,588,824.16/42,916.75
  6. Step 6: Final answer
    x = 17,629.22

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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.