Home / 38,274.48-57,288.90-20,460.69

Finding the Fourth Proportional to 38,274.48, 57,288.90 and 20,460.69

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Solution

The fourth proportional to 38,274.48, 57,288.90 and 20,460.69 is: 30,625.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,274.48 : 57,288.90 = 20,460.69 : x
  2. Step 2: Convert to fraction form
    38,274.48/57,288.90 = 20,460.69/x
  3. Step 3: Cross multiply
    38,274.48x = 57,288.90 × 20,460.69
  4. Step 4: Simplify right side
    38,274.48x = 1,172,170,423.34
  5. Step 5: Solve for x
    x = 1,172,170,423.34/38,274.48
  6. Step 6: Final answer
    x = 30,625.38

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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.