Home / 28,685.71-39,583.41-16,747.39

Finding the Fourth Proportional to 28,685.71, 39,583.41 and 16,747.39

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Solution

The fourth proportional to 28,685.71, 39,583.41 and 16,747.39 is: 23,109.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,685.71 : 39,583.41 = 16,747.39 : x
  2. Step 2: Convert to fraction form
    28,685.71/39,583.41 = 16,747.39/x
  3. Step 3: Cross multiply
    28,685.71x = 39,583.41 × 16,747.39
  4. Step 4: Simplify right side
    28,685.71x = 662,918,606.88
  5. Step 5: Solve for x
    x = 662,918,606.88/28,685.71
  6. Step 6: Final answer
    x = 23,109.72

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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.