Home / 38,619.06-57,929.61-12,323.78

Finding the Fourth Proportional to 38,619.06, 57,929.61 and 12,323.78

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Solution

The fourth proportional to 38,619.06, 57,929.61 and 12,323.78 is: 18,485.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,619.06 : 57,929.61 = 12,323.78 : x
  2. Step 2: Convert to fraction form
    38,619.06/57,929.61 = 12,323.78/x
  3. Step 3: Cross multiply
    38,619.06x = 57,929.61 × 12,323.78
  4. Step 4: Simplify right side
    38,619.06x = 713,911,479.48
  5. Step 5: Solve for x
    x = 713,911,479.48/38,619.06
  6. Step 6: Final answer
    x = 18,485.99

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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.