Home / 28,730.30-43,081.74-12,087.23

Finding the Fourth Proportional to 28,730.30, 43,081.74 and 12,087.23

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Solution

The fourth proportional to 28,730.30, 43,081.74 and 12,087.23 is: 18,125.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,730.30 : 43,081.74 = 12,087.23 : x
  2. Step 2: Convert to fraction form
    28,730.30/43,081.74 = 12,087.23/x
  3. Step 3: Cross multiply
    28,730.30x = 43,081.74 × 12,087.23
  4. Step 4: Simplify right side
    28,730.30x = 520,738,684.77
  5. Step 5: Solve for x
    x = 520,738,684.77/28,730.30
  6. Step 6: Final answer
    x = 18,125.07

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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.