Home / 38,660.48-57,994.88-12,369.28

Finding the Fourth Proportional to 38,660.48, 57,994.88 and 12,369.28

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Solution

The fourth proportional to 38,660.48, 57,994.88 and 12,369.28 is: 18,555.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,660.48 : 57,994.88 = 12,369.28 : x
  2. Step 2: Convert to fraction form
    38,660.48/57,994.88 = 12,369.28/x
  3. Step 3: Cross multiply
    38,660.48x = 57,994.88 × 12,369.28
  4. Step 4: Simplify right side
    38,660.48x = 717,354,909.29
  5. Step 5: Solve for x
    x = 717,354,909.29/38,660.48
  6. Step 6: Final answer
    x = 18,555.25

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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.