Home / 40,558.97-60,838.59-12,478.83

Finding the Fourth Proportional to 40,558.97, 60,838.59 and 12,478.83

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Solution

The fourth proportional to 40,558.97, 60,838.59 and 12,478.83 is: 18,718.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,558.97 : 60,838.59 = 12,478.83 : x
  2. Step 2: Convert to fraction form
    40,558.97/60,838.59 = 12,478.83/x
  3. Step 3: Cross multiply
    40,558.97x = 60,838.59 × 12,478.83
  4. Step 4: Simplify right side
    40,558.97x = 759,194,422.05
  5. Step 5: Solve for x
    x = 759,194,422.05/40,558.97
  6. Step 6: Final answer
    x = 18,718.29

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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.