Home / 34,791.09-47,975.40-20,641.20

Finding the Fourth Proportional to 34,791.09, 47,975.40 and 20,641.20

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Solution

The fourth proportional to 34,791.09, 47,975.40 and 20,641.20 is: 28,463.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,791.09 : 47,975.40 = 20,641.20 : x
  2. Step 2: Convert to fraction form
    34,791.09/47,975.40 = 20,641.20/x
  3. Step 3: Cross multiply
    34,791.09x = 47,975.40 × 20,641.20
  4. Step 4: Simplify right side
    34,791.09x = 990,269,826.48
  5. Step 5: Solve for x
    x = 990,269,826.48/34,791.09
  6. Step 6: Final answer
    x = 28,463.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.