Home / 38,187.32-57,297.30-20,669.56

Finding the Fourth Proportional to 38,187.32, 57,297.30 and 20,669.56

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Solution

The fourth proportional to 38,187.32, 57,297.30 and 20,669.56 is: 31,013.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,187.32 : 57,297.30 = 20,669.56 : x
  2. Step 2: Convert to fraction form
    38,187.32/57,297.30 = 20,669.56/x
  3. Step 3: Cross multiply
    38,187.32x = 57,297.30 × 20,669.56
  4. Step 4: Simplify right side
    38,187.32x = 1,184,309,980.19
  5. Step 5: Solve for x
    x = 1,184,309,980.19/38,187.32
  6. Step 6: Final answer
    x = 31,013.17

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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.