Home / 20,554.36-30,774.26-13,140.52

Finding the Fourth Proportional to 20,554.36, 30,774.26 and 13,140.52

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Solution

The fourth proportional to 20,554.36, 30,774.26 and 13,140.52 is: 19,674.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,554.36 : 30,774.26 = 13,140.52 : x
  2. Step 2: Convert to fraction form
    20,554.36/30,774.26 = 13,140.52/x
  3. Step 3: Cross multiply
    20,554.36x = 30,774.26 × 13,140.52
  4. Step 4: Simplify right side
    20,554.36x = 404,389,779.02
  5. Step 5: Solve for x
    x = 404,389,779.02/20,554.36
  6. Step 6: Final answer
    x = 19,674.16

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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.