Home / 20,736.90-31,079.43-16,336.98

Finding the Fourth Proportional to 20,736.90, 31,079.43 and 16,336.98

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Solution

The fourth proportional to 20,736.90, 31,079.43 and 16,336.98 is: 24,485.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736.90 : 31,079.43 = 16,336.98 : x
  2. Step 2: Convert to fraction form
    20,736.90/31,079.43 = 16,336.98/x
  3. Step 3: Cross multiply
    20,736.90x = 31,079.43 × 16,336.98
  4. Step 4: Simplify right side
    20,736.90x = 507,744,026.32
  5. Step 5: Solve for x
    x = 507,744,026.32/20,736.90
  6. Step 6: Final answer
    x = 24,485.05

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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.