Home / 38,480.48-53,103.89-21,252.80

Finding the Fourth Proportional to 38,480.48, 53,103.89 and 21,252.80

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Solution

The fourth proportional to 38,480.48, 53,103.89 and 21,252.80 is: 29,329.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,480.48 : 53,103.89 = 21,252.80 : x
  2. Step 2: Convert to fraction form
    38,480.48/53,103.89 = 21,252.80/x
  3. Step 3: Cross multiply
    38,480.48x = 53,103.89 × 21,252.80
  4. Step 4: Simplify right side
    38,480.48x = 1,128,605,981.61
  5. Step 5: Solve for x
    x = 1,128,605,981.61/38,480.48
  6. Step 6: Final answer
    x = 29,329.32

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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.