Home / 38,021.81-57,044.86-18,289.60

Finding the Fourth Proportional to 38,021.81, 57,044.86 and 18,289.60

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Solution

The fourth proportional to 38,021.81, 57,044.86 and 18,289.60 is: 27,440.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,021.81 : 57,044.86 = 18,289.60 : x
  2. Step 2: Convert to fraction form
    38,021.81/57,044.86 = 18,289.60/x
  3. Step 3: Cross multiply
    38,021.81x = 57,044.86 × 18,289.60
  4. Step 4: Simplify right side
    38,021.81x = 1,043,327,483.12
  5. Step 5: Solve for x
    x = 1,043,327,483.12/38,021.81
  6. Step 6: Final answer
    x = 27,440.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.