Home / 47,938.43-71,907.62-12,878.07

Finding the Fourth Proportional to 47,938.43, 71,907.62 and 12,878.07

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Solution

The fourth proportional to 47,938.43, 71,907.62 and 12,878.07 is: 19,317.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,938.43 : 71,907.62 = 12,878.07 : x
  2. Step 2: Convert to fraction form
    47,938.43/71,907.62 = 12,878.07/x
  3. Step 3: Cross multiply
    47,938.43x = 71,907.62 × 12,878.07
  4. Step 4: Simplify right side
    47,938.43x = 926,031,299.50
  5. Step 5: Solve for x
    x = 926,031,299.50/47,938.43
  6. Step 6: Final answer
    x = 19,317.10

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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.