Home / 38,981.22-53,794.49-21,076.58

Finding the Fourth Proportional to 38,981.22, 53,794.49 and 21,076.58

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Solution

The fourth proportional to 38,981.22, 53,794.49 and 21,076.58 is: 29,085.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,981.22 : 53,794.49 = 21,076.58 : x
  2. Step 2: Convert to fraction form
    38,981.22/53,794.49 = 21,076.58/x
  3. Step 3: Cross multiply
    38,981.22x = 53,794.49 × 21,076.58
  4. Step 4: Simplify right side
    38,981.22x = 1,133,803,497.69
  5. Step 5: Solve for x
    x = 1,133,803,497.69/38,981.22
  6. Step 6: Final answer
    x = 29,085.89

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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.