Home / 43,384.80-65,089.44-12,220.32

Finding the Fourth Proportional to 43,384.80, 65,089.44 and 12,220.32

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Solution

The fourth proportional to 43,384.80, 65,089.44 and 12,220.32 is: 18,333.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,384.80 : 65,089.44 = 12,220.32 : x
  2. Step 2: Convert to fraction form
    43,384.80/65,089.44 = 12,220.32/x
  3. Step 3: Cross multiply
    43,384.80x = 65,089.44 × 12,220.32
  4. Step 4: Simplify right side
    43,384.80x = 795,413,785.42
  5. Step 5: Solve for x
    x = 795,413,785.42/43,384.80
  6. Step 6: Final answer
    x = 18,333.93

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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.