Home / 28,665.39-43,000.80-11,136.57

Finding the Fourth Proportional to 28,665.39, 43,000.80 and 11,136.57

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Solution

The fourth proportional to 28,665.39, 43,000.80 and 11,136.57 is: 16,705.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,665.39 : 43,000.80 = 11,136.57 : x
  2. Step 2: Convert to fraction form
    28,665.39/43,000.80 = 11,136.57/x
  3. Step 3: Cross multiply
    28,665.39x = 43,000.80 × 11,136.57
  4. Step 4: Simplify right side
    28,665.39x = 478,881,419.26
  5. Step 5: Solve for x
    x = 478,881,419.26/28,665.39
  6. Step 6: Final answer
    x = 16,705.91

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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.