Home / 21,556.80-29,741.46-13,056.24

Finding the Fourth Proportional to 21,556.80, 29,741.46 and 13,056.24

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Solution

The fourth proportional to 21,556.80, 29,741.46 and 13,056.24 is: 18,013.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,556.80 : 29,741.46 = 13,056.24 : x
  2. Step 2: Convert to fraction form
    21,556.80/29,741.46 = 13,056.24/x
  3. Step 3: Cross multiply
    21,556.80x = 29,741.46 × 13,056.24
  4. Step 4: Simplify right side
    21,556.80x = 388,311,639.71
  5. Step 5: Solve for x
    x = 388,311,639.71/21,556.80
  6. Step 6: Final answer
    x = 18,013.42

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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.