Home / 28,666.50-43,005.90-11,136.30

Finding the Fourth Proportional to 28,666.50, 43,005.90 and 11,136.30

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Solution

The fourth proportional to 28,666.50, 43,005.90 and 11,136.30 is: 16,706.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,666.50 : 43,005.90 = 11,136.30 : x
  2. Step 2: Convert to fraction form
    28,666.50/43,005.90 = 11,136.30/x
  3. Step 3: Cross multiply
    28,666.50x = 43,005.90 × 11,136.30
  4. Step 4: Simplify right side
    28,666.50x = 478,926,604.17
  5. Step 5: Solve for x
    x = 478,926,604.17/28,666.50
  6. Step 6: Final answer
    x = 16,706.84

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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.