Home / 43,968.70-65,946.16-12,381.13

Finding the Fourth Proportional to 43,968.70, 65,946.16 and 12,381.13

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Solution

The fourth proportional to 43,968.70, 65,946.16 and 12,381.13 is: 18,569.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,968.70 : 65,946.16 = 12,381.13 : x
  2. Step 2: Convert to fraction form
    43,968.70/65,946.16 = 12,381.13/x
  3. Step 3: Cross multiply
    43,968.70x = 65,946.16 × 12,381.13
  4. Step 4: Simplify right side
    43,968.70x = 816,487,979.96
  5. Step 5: Solve for x
    x = 816,487,979.96/43,968.70
  6. Step 6: Final answer
    x = 18,569.75

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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.