Home / 20,297.15-28,010.03-11,804.25

Finding the Fourth Proportional to 20,297.15, 28,010.03 and 11,804.25

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Solution

The fourth proportional to 20,297.15, 28,010.03 and 11,804.25 is: 16,289.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,297.15 : 28,010.03 = 11,804.25 : x
  2. Step 2: Convert to fraction form
    20,297.15/28,010.03 = 11,804.25/x
  3. Step 3: Cross multiply
    20,297.15x = 28,010.03 × 11,804.25
  4. Step 4: Simplify right side
    20,297.15x = 330,637,337.61
  5. Step 5: Solve for x
    x = 330,637,337.61/20,297.15
  6. Step 6: Final answer
    x = 16,289.84

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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.