Home / 39,040.26-53,875.53-21,135.26

Finding the Fourth Proportional to 39,040.26, 53,875.53 and 21,135.26

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Solution

The fourth proportional to 39,040.26, 53,875.53 and 21,135.26 is: 29,166.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,040.26 : 53,875.53 = 21,135.26 : x
  2. Step 2: Convert to fraction form
    39,040.26/53,875.53 = 21,135.26/x
  3. Step 3: Cross multiply
    39,040.26x = 53,875.53 × 21,135.26
  4. Step 4: Simplify right side
    39,040.26x = 1,138,673,064.81
  5. Step 5: Solve for x
    x = 1,138,673,064.81/39,040.26
  6. Step 6: Final answer
    x = 29,166.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.