Home / 28,118.13-42,156.35-17,022.20

Finding the Fourth Proportional to 28,118.13, 42,156.35 and 17,022.20

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Solution

The fourth proportional to 28,118.13, 42,156.35 and 17,022.20 is: 25,520.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,118.13 : 42,156.35 = 17,022.20 : x
  2. Step 2: Convert to fraction form
    28,118.13/42,156.35 = 17,022.20/x
  3. Step 3: Cross multiply
    28,118.13x = 42,156.35 × 17,022.20
  4. Step 4: Simplify right side
    28,118.13x = 717,593,652.74
  5. Step 5: Solve for x
    x = 717,593,652.74/28,118.13
  6. Step 6: Final answer
    x = 25,520.67

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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.