Home / 20,807.90-31,212.77-6,018.32

Finding the Fourth Proportional to 20,807.90, 31,212.77 and 6,018.32

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Solution

The fourth proportional to 20,807.90, 31,212.77 and 6,018.32 is: 9,027.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,807.90 : 31,212.77 = 6,018.32 : x
  2. Step 2: Convert to fraction form
    20,807.90/31,212.77 = 6,018.32/x
  3. Step 3: Cross multiply
    20,807.90x = 31,212.77 × 6,018.32
  4. Step 4: Simplify right side
    20,807.90x = 187,848,327.24
  5. Step 5: Solve for x
    x = 187,848,327.24/20,807.90
  6. Step 6: Final answer
    x = 9,027.74

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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.