Home / 20,347.80-30,543.27-18,022.89

Finding the Fourth Proportional to 20,347.80, 30,543.27 and 18,022.89

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Solution

The fourth proportional to 20,347.80, 30,543.27 and 18,022.89 is: 27,053.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347.80 : 30,543.27 = 18,022.89 : x
  2. Step 2: Convert to fraction form
    20,347.80/30,543.27 = 18,022.89/x
  3. Step 3: Cross multiply
    20,347.80x = 30,543.27 × 18,022.89
  4. Step 4: Simplify right side
    20,347.80x = 550,477,995.45
  5. Step 5: Solve for x
    x = 550,477,995.45/20,347.80
  6. Step 6: Final answer
    x = 27,053.44

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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.