Home / 28,293.72-39,071.58-18,245.66

Finding the Fourth Proportional to 28,293.72, 39,071.58 and 18,245.66

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Solution

The fourth proportional to 28,293.72, 39,071.58 and 18,245.66 is: 25,195.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,293.72 : 39,071.58 = 18,245.66 : x
  2. Step 2: Convert to fraction form
    28,293.72/39,071.58 = 18,245.66/x
  3. Step 3: Cross multiply
    28,293.72x = 39,071.58 × 18,245.66
  4. Step 4: Simplify right side
    28,293.72x = 712,886,764.34
  5. Step 5: Solve for x
    x = 712,886,764.34/28,293.72
  6. Step 6: Final answer
    x = 25,195.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.