Home / 38,424.25-53,025.37-21,428.52

Finding the Fourth Proportional to 38,424.25, 53,025.37 and 21,428.52

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Solution

The fourth proportional to 38,424.25, 53,025.37 and 21,428.52 is: 29,571.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,424.25 : 53,025.37 = 21,428.52 : x
  2. Step 2: Convert to fraction form
    38,424.25/53,025.37 = 21,428.52/x
  3. Step 3: Cross multiply
    38,424.25x = 53,025.37 × 21,428.52
  4. Step 4: Simplify right side
    38,424.25x = 1,136,255,201.55
  5. Step 5: Solve for x
    x = 1,136,255,201.55/38,424.25
  6. Step 6: Final answer
    x = 29,571.30

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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.