Home / 34,760.10-47,975.58-20,620.74

Finding the Fourth Proportional to 34,760.10, 47,975.58 and 20,620.74

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Solution

The fourth proportional to 34,760.10, 47,975.58 and 20,620.74 is: 28,460.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,760.10 : 47,975.58 = 20,620.74 : x
  2. Step 2: Convert to fraction form
    34,760.10/47,975.58 = 20,620.74/x
  3. Step 3: Cross multiply
    34,760.10x = 47,975.58 × 20,620.74
  4. Step 4: Simplify right side
    34,760.10x = 989,291,961.53
  5. Step 5: Solve for x
    x = 989,291,961.53/34,760.10
  6. Step 6: Final answer
    x = 28,460.56

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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.