Home / 13,302.80-19,970.40-13,205.60

Finding the Fourth Proportional to 13,302.80, 19,970.40 and 13,205.60

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Solution

The fourth proportional to 13,302.80, 19,970.40 and 13,205.60 is: 19,824.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,302.80 : 19,970.40 = 13,205.60 : x
  2. Step 2: Convert to fraction form
    13,302.80/19,970.40 = 13,205.60/x
  3. Step 3: Cross multiply
    13,302.80x = 19,970.40 × 13,205.60
  4. Step 4: Simplify right side
    13,302.80x = 263,721,114.24
  5. Step 5: Solve for x
    x = 263,721,114.24/13,302.80
  6. Step 6: Final answer
    x = 19,824.48

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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.