Home / 38,840.40-58,222.20-15,435.60

Finding the Fourth Proportional to 38,840.40, 58,222.20 and 15,435.60

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Solution

The fourth proportional to 38,840.40, 58,222.20 and 15,435.60 is: 23,138.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,840.40 : 58,222.20 = 15,435.60 : x
  2. Step 2: Convert to fraction form
    38,840.40/58,222.20 = 15,435.60/x
  3. Step 3: Cross multiply
    38,840.40x = 58,222.20 × 15,435.60
  4. Step 4: Simplify right side
    38,840.40x = 898,694,590.32
  5. Step 5: Solve for x
    x = 898,694,590.32/38,840.40
  6. Step 6: Final answer
    x = 23,138.14

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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.