Home / 28,636.20-42,954.30-15,514.20

Finding the Fourth Proportional to 28,636.20, 42,954.30 and 15,514.20

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Solution

The fourth proportional to 28,636.20, 42,954.30 and 15,514.20 is: 23,271.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,636.20 : 42,954.30 = 15,514.20 : x
  2. Step 2: Convert to fraction form
    28,636.20/42,954.30 = 15,514.20/x
  3. Step 3: Cross multiply
    28,636.20x = 42,954.30 × 15,514.20
  4. Step 4: Simplify right side
    28,636.20x = 666,401,601.06
  5. Step 5: Solve for x
    x = 666,401,601.06/28,636.20
  6. Step 6: Final answer
    x = 23,271.30

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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.