Home / 38,504.73-53,136.72-21,509.69

Finding the Fourth Proportional to 38,504.73, 53,136.72 and 21,509.69

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Solution

The fourth proportional to 38,504.73, 53,136.72 and 21,509.69 is: 29,683.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,504.73 : 53,136.72 = 21,509.69 : x
  2. Step 2: Convert to fraction form
    38,504.73/53,136.72 = 21,509.69/x
  3. Step 3: Cross multiply
    38,504.73x = 53,136.72 × 21,509.69
  4. Step 4: Simplify right side
    38,504.73x = 1,142,954,109.13
  5. Step 5: Solve for x
    x = 1,142,954,109.13/38,504.73
  6. Step 6: Final answer
    x = 29,683.47

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1.5x scale

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.