Home / 34,255.52-47,271.84-20,109.68

Finding the Fourth Proportional to 34,255.52, 47,271.84 and 20,109.68

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Solution

The fourth proportional to 34,255.52, 47,271.84 and 20,109.68 is: 27,750.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,255.52 : 47,271.84 = 20,109.68 : x
  2. Step 2: Convert to fraction form
    34,255.52/47,271.84 = 20,109.68/x
  3. Step 3: Cross multiply
    34,255.52x = 47,271.84 × 20,109.68
  4. Step 4: Simplify right side
    34,255.52x = 950,621,575.41
  5. Step 5: Solve for x
    x = 950,621,575.41/34,255.52
  6. Step 6: Final answer
    x = 27,750.90

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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.