Home / 19,280.57-28,930.23-8,757.45

Finding the Fourth Proportional to 19,280.57, 28,930.23 and 8,757.45

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Solution

The fourth proportional to 19,280.57, 28,930.23 and 8,757.45 is: 13,140.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,280.57 : 28,930.23 = 8,757.45 : x
  2. Step 2: Convert to fraction form
    19,280.57/28,930.23 = 8,757.45/x
  3. Step 3: Cross multiply
    19,280.57x = 28,930.23 × 8,757.45
  4. Step 4: Simplify right side
    19,280.57x = 253,355,042.71
  5. Step 5: Solve for x
    x = 253,355,042.71/19,280.57
  6. Step 6: Final answer
    x = 13,140.44

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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.