Home / 28,678.34-39,576.94-16,742.18

Finding the Fourth Proportional to 28,678.34, 39,576.94 and 16,742.18

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Solution

The fourth proportional to 28,678.34, 39,576.94 and 16,742.18 is: 23,104.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678.34 : 39,576.94 = 16,742.18 : x
  2. Step 2: Convert to fraction form
    28,678.34/39,576.94 = 16,742.18/x
  3. Step 3: Cross multiply
    28,678.34x = 39,576.94 × 16,742.18
  4. Step 4: Simplify right side
    28,678.34x = 662,604,253.33
  5. Step 5: Solve for x
    x = 662,604,253.33/28,678.34
  6. Step 6: Final answer
    x = 23,104.69

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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.