Home / 28,393.43-39,162.08-18,316.76

Finding the Fourth Proportional to 28,393.43, 39,162.08 and 18,316.76

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Solution

The fourth proportional to 28,393.43, 39,162.08 and 18,316.76 is: 25,263.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,393.43 : 39,162.08 = 18,316.76 : x
  2. Step 2: Convert to fraction form
    28,393.43/39,162.08 = 18,316.76/x
  3. Step 3: Cross multiply
    28,393.43x = 39,162.08 × 18,316.76
  4. Step 4: Simplify right side
    28,393.43x = 717,322,270.44
  5. Step 5: Solve for x
    x = 717,322,270.44/28,393.43
  6. Step 6: Final answer
    x = 25,263.68

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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.