Home / 20,585.23-28,405.92-11,633.50

Finding the Fourth Proportional to 20,585.23, 28,405.92 and 11,633.50

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Solution

The fourth proportional to 20,585.23, 28,405.92 and 11,633.50 is: 16,053.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,585.23 : 28,405.92 = 11,633.50 : x
  2. Step 2: Convert to fraction form
    20,585.23/28,405.92 = 11,633.50/x
  3. Step 3: Cross multiply
    20,585.23x = 28,405.92 × 11,633.50
  4. Step 4: Simplify right side
    20,585.23x = 330,460,270.32
  5. Step 5: Solve for x
    x = 330,460,270.32/20,585.23
  6. Step 6: Final answer
    x = 16,053.27

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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.