Home / 38,768.40-58,008.60-28,400.40

Finding the Fourth Proportional to 38,768.40, 58,008.60 and 28,400.40

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Solution

The fourth proportional to 38,768.40, 58,008.60 and 28,400.40 is: 42,495.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,768.40 : 58,008.60 = 28,400.40 : x
  2. Step 2: Convert to fraction form
    38,768.40/58,008.60 = 28,400.40/x
  3. Step 3: Cross multiply
    38,768.40x = 58,008.60 × 28,400.40
  4. Step 4: Simplify right side
    38,768.40x = 1,647,467,443.44
  5. Step 5: Solve for x
    x = 1,647,467,443.44/38,768.40
  6. Step 6: Final answer
    x = 42,495.11

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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.