Home / 38,836.40-58,216.20-15,431.60

Finding the Fourth Proportional to 38,836.40, 58,216.20 and 15,431.60

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Solution

The fourth proportional to 38,836.40, 58,216.20 and 15,431.60 is: 23,132.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,836.40 : 58,216.20 = 15,431.60 : x
  2. Step 2: Convert to fraction form
    38,836.40/58,216.20 = 15,431.60/x
  3. Step 3: Cross multiply
    38,836.40x = 58,216.20 × 15,431.60
  4. Step 4: Simplify right side
    38,836.40x = 898,369,111.92
  5. Step 5: Solve for x
    x = 898,369,111.92/38,836.40
  6. Step 6: Final answer
    x = 23,132.14

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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.