Home / 28,148.75-38,846-16,971.47

Finding the Fourth Proportional to 28,148.75, 38,846 and 16,971.47

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Solution

The fourth proportional to 28,148.75, 38,846 and 16,971.47 is: 23,421.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,148.75 : 38,846 = 16,971.47 : x
  2. Step 2: Convert to fraction form
    28,148.75/38,846 = 16,971.47/x
  3. Step 3: Cross multiply
    28,148.75x = 38,846 × 16,971.47
  4. Step 4: Simplify right side
    28,148.75x = 659,273,723.62
  5. Step 5: Solve for x
    x = 659,273,723.62/28,148.75
  6. Step 6: Final answer
    x = 23,421.07

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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.