Home / 19,280.32-28,930.56-10,513.60

Finding the Fourth Proportional to 19,280.32, 28,930.56 and 10,513.60

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Solution

The fourth proportional to 19,280.32, 28,930.56 and 10,513.60 is: 15,775.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,280.32 : 28,930.56 = 10,513.60 : x
  2. Step 2: Convert to fraction form
    19,280.32/28,930.56 = 10,513.60/x
  3. Step 3: Cross multiply
    19,280.32x = 28,930.56 × 10,513.60
  4. Step 4: Simplify right side
    19,280.32x = 304,164,335.62
  5. Step 5: Solve for x
    x = 304,164,335.62/19,280.32
  6. Step 6: Final answer
    x = 15,775.90

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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.