Home / 30,678.16-46,017.24-13,136.64

Finding the Fourth Proportional to 30,678.16, 46,017.24 and 13,136.64

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Solution

The fourth proportional to 30,678.16, 46,017.24 and 13,136.64 is: 19,704.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,678.16 : 46,017.24 = 13,136.64 : x
  2. Step 2: Convert to fraction form
    30,678.16/46,017.24 = 13,136.64/x
  3. Step 3: Cross multiply
    30,678.16x = 46,017.24 × 13,136.64
  4. Step 4: Simplify right side
    30,678.16x = 604,511,915.67
  5. Step 5: Solve for x
    x = 604,511,915.67/30,678.16
  6. Step 6: Final answer
    x = 19,704.96

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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.