Home / 20,036.27-27,655.80-13,235.27

Finding the Fourth Proportional to 20,036.27, 27,655.80 and 13,235.27

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Solution

The fourth proportional to 20,036.27, 27,655.80 and 13,235.27 is: 18,268.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,036.27 : 27,655.80 = 13,235.27 : x
  2. Step 2: Convert to fraction form
    20,036.27/27,655.80 = 13,235.27/x
  3. Step 3: Cross multiply
    20,036.27x = 27,655.80 × 13,235.27
  4. Step 4: Simplify right side
    20,036.27x = 366,031,980.07
  5. Step 5: Solve for x
    x = 366,031,980.07/20,036.27
  6. Step 6: Final answer
    x = 18,268.47

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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.