Home / 19,280.66-28,910.62-10,400.76

Finding the Fourth Proportional to 19,280.66, 28,910.62 and 10,400.76

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Solution

The fourth proportional to 19,280.66, 28,910.62 and 10,400.76 is: 15,595.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,280.66 : 28,910.62 = 10,400.76 : x
  2. Step 2: Convert to fraction form
    19,280.66/28,910.62 = 10,400.76/x
  3. Step 3: Cross multiply
    19,280.66x = 28,910.62 × 10,400.76
  4. Step 4: Simplify right side
    19,280.66x = 300,692,394.07
  5. Step 5: Solve for x
    x = 300,692,394.07/19,280.66
  6. Step 6: Final answer
    x = 15,595.54

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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.