Home / 28,189.22-42,267.40-10,660.41

Finding the Fourth Proportional to 28,189.22, 42,267.40 and 10,660.41

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Solution

The fourth proportional to 28,189.22, 42,267.40 and 10,660.41 is: 15,984.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,189.22 : 42,267.40 = 10,660.41 : x
  2. Step 2: Convert to fraction form
    28,189.22/42,267.40 = 10,660.41/x
  3. Step 3: Cross multiply
    28,189.22x = 42,267.40 × 10,660.41
  4. Step 4: Simplify right side
    28,189.22x = 450,587,786.98
  5. Step 5: Solve for x
    x = 450,587,786.98/28,189.22
  6. Step 6: Final answer
    x = 15,984.40

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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.