Home / 38,631.26-57,972.86-13,671.20

Finding the Fourth Proportional to 38,631.26, 57,972.86 and 13,671.20

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Solution

The fourth proportional to 38,631.26, 57,972.86 and 13,671.20 is: 20,515.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,631.26 : 57,972.86 = 13,671.20 : x
  2. Step 2: Convert to fraction form
    38,631.26/57,972.86 = 13,671.20/x
  3. Step 3: Cross multiply
    38,631.26x = 57,972.86 × 13,671.20
  4. Step 4: Simplify right side
    38,631.26x = 792,558,563.63
  5. Step 5: Solve for x
    x = 792,558,563.63/38,631.26
  6. Step 6: Final answer
    x = 20,515.99

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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.