Home / 28,491.84-42,734.40-17,930.70

Finding the Fourth Proportional to 28,491.84, 42,734.40 and 17,930.70

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Solution

The fourth proportional to 28,491.84, 42,734.40 and 17,930.70 is: 26,893.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,491.84 : 42,734.40 = 17,930.70 : x
  2. Step 2: Convert to fraction form
    28,491.84/42,734.40 = 17,930.70/x
  3. Step 3: Cross multiply
    28,491.84x = 42,734.40 × 17,930.70
  4. Step 4: Simplify right side
    28,491.84x = 766,257,706.08
  5. Step 5: Solve for x
    x = 766,257,706.08/28,491.84
  6. Step 6: Final answer
    x = 26,893.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.