Home / 43,307.44-64,963.62-12,145.12

Finding the Fourth Proportional to 43,307.44, 64,963.62 and 12,145.12

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Solution

The fourth proportional to 43,307.44, 64,963.62 and 12,145.12 is: 18,218.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,307.44 : 64,963.62 = 12,145.12 : x
  2. Step 2: Convert to fraction form
    43,307.44/64,963.62 = 12,145.12/x
  3. Step 3: Cross multiply
    43,307.44x = 64,963.62 × 12,145.12
  4. Step 4: Simplify right side
    43,307.44x = 788,990,798.13
  5. Step 5: Solve for x
    x = 788,990,798.13/43,307.44
  6. Step 6: Final answer
    x = 18,218.37

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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.