Home / 38,401.20-57,601.80-38,012.40

Finding the Fourth Proportional to 38,401.20, 57,601.80 and 38,012.40

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Solution

The fourth proportional to 38,401.20, 57,601.80 and 38,012.40 is: 57,018.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,401.20 : 57,601.80 = 38,012.40 : x
  2. Step 2: Convert to fraction form
    38,401.20/57,601.80 = 38,012.40/x
  3. Step 3: Cross multiply
    38,401.20x = 57,601.80 × 38,012.40
  4. Step 4: Simplify right side
    38,401.20x = 2,189,582,662.32
  5. Step 5: Solve for x
    x = 2,189,582,662.32/38,401.20
  6. Step 6: Final answer
    x = 57,018.60

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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.