Home / 20,670.80-31,012.27-10,804.59

Finding the Fourth Proportional to 20,670.80, 31,012.27 and 10,804.59

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Solution

The fourth proportional to 20,670.80, 31,012.27 and 10,804.59 is: 16,210.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,670.80 : 31,012.27 = 10,804.59 : x
  2. Step 2: Convert to fraction form
    20,670.80/31,012.27 = 10,804.59/x
  3. Step 3: Cross multiply
    20,670.80x = 31,012.27 × 10,804.59
  4. Step 4: Simplify right side
    20,670.80x = 335,074,835.31
  5. Step 5: Solve for x
    x = 335,074,835.31/20,670.80
  6. Step 6: Final answer
    x = 16,210.06

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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.