Home / 43,411.16-65,115.60-13,830.80

Finding the Fourth Proportional to 43,411.16, 65,115.60 and 13,830.80

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Solution

The fourth proportional to 43,411.16, 65,115.60 and 13,830.80 is: 20,745.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,411.16 : 65,115.60 = 13,830.80 : x
  2. Step 2: Convert to fraction form
    43,411.16/65,115.60 = 13,830.80/x
  3. Step 3: Cross multiply
    43,411.16x = 65,115.60 × 13,830.80
  4. Step 4: Simplify right side
    43,411.16x = 900,600,840.48
  5. Step 5: Solve for x
    x = 900,600,840.48/43,411.16
  6. Step 6: Final answer
    x = 20,745.84

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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.