Home / 28,683.72-39,583.18-16,108.47

Finding the Fourth Proportional to 28,683.72, 39,583.18 and 16,108.47

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Solution

The fourth proportional to 28,683.72, 39,583.18 and 16,108.47 is: 22,229.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,683.72 : 39,583.18 = 16,108.47 : x
  2. Step 2: Convert to fraction form
    28,683.72/39,583.18 = 16,108.47/x
  3. Step 3: Cross multiply
    28,683.72x = 39,583.18 × 16,108.47
  4. Step 4: Simplify right side
    28,683.72x = 637,624,487.67
  5. Step 5: Solve for x
    x = 637,624,487.67/28,683.72
  6. Step 6: Final answer
    x = 22,229.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.