Home / 20,271.95-27,973.25-13,903.97

Finding the Fourth Proportional to 20,271.95, 27,973.25 and 13,903.97

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Solution

The fourth proportional to 20,271.95, 27,973.25 and 13,903.97 is: 19,186.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,271.95 : 27,973.25 = 13,903.97 : x
  2. Step 2: Convert to fraction form
    20,271.95/27,973.25 = 13,903.97/x
  3. Step 3: Cross multiply
    20,271.95x = 27,973.25 × 13,903.97
  4. Step 4: Simplify right side
    20,271.95x = 388,939,229.22
  5. Step 5: Solve for x
    x = 388,939,229.22/20,271.95
  6. Step 6: Final answer
    x = 19,186.08

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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.