Home / 38,987.54-58,480.75-9,405.12

Finding the Fourth Proportional to 38,987.54, 58,480.75 and 9,405.12

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Solution

The fourth proportional to 38,987.54, 58,480.75 and 9,405.12 is: 14,107.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,987.54 : 58,480.75 = 9,405.12 : x
  2. Step 2: Convert to fraction form
    38,987.54/58,480.75 = 9,405.12/x
  3. Step 3: Cross multiply
    38,987.54x = 58,480.75 × 9,405.12
  4. Step 4: Simplify right side
    38,987.54x = 550,018,471.44
  5. Step 5: Solve for x
    x = 550,018,471.44/38,987.54
  6. Step 6: Final answer
    x = 14,107.54

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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.