Home / 40,429.20-60,643.80-14,136.60

Finding the Fourth Proportional to 40,429.20, 60,643.80 and 14,136.60

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Solution

The fourth proportional to 40,429.20, 60,643.80 and 14,136.60 is: 21,204.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,429.20 : 60,643.80 = 14,136.60 : x
  2. Step 2: Convert to fraction form
    40,429.20/60,643.80 = 14,136.60/x
  3. Step 3: Cross multiply
    40,429.20x = 60,643.80 × 14,136.60
  4. Step 4: Simplify right side
    40,429.20x = 857,297,143.08
  5. Step 5: Solve for x
    x = 857,297,143.08/40,429.20
  6. Step 6: Final answer
    x = 21,204.90

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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.