Home / 29,136.69-43,705.06-12,485.93

Finding the Fourth Proportional to 29,136.69, 43,705.06 and 12,485.93

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Solution

The fourth proportional to 29,136.69, 43,705.06 and 12,485.93 is: 18,728.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,136.69 : 43,705.06 = 12,485.93 : x
  2. Step 2: Convert to fraction form
    29,136.69/43,705.06 = 12,485.93/x
  3. Step 3: Cross multiply
    29,136.69x = 43,705.06 × 12,485.93
  4. Step 4: Simplify right side
    29,136.69x = 545,698,070.07
  5. Step 5: Solve for x
    x = 545,698,070.07/29,136.69
  6. Step 6: Final answer
    x = 18,728.90

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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.