Home / 46,778.60-70,146.30-20,469.80

Finding the Fourth Proportional to 46,778.60, 70,146.30 and 20,469.80

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Solution

The fourth proportional to 46,778.60, 70,146.30 and 20,469.80 is: 30,695.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,778.60 : 70,146.30 = 20,469.80 : x
  2. Step 2: Convert to fraction form
    46,778.60/70,146.30 = 20,469.80/x
  3. Step 3: Cross multiply
    46,778.60x = 70,146.30 × 20,469.80
  4. Step 4: Simplify right side
    46,778.60x = 1,435,880,731.74
  5. Step 5: Solve for x
    x = 1,435,880,731.74/46,778.60
  6. Step 6: Final answer
    x = 30,695.25

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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.