Home / 10,031.85-15,047.78-2,636.28

Finding the Fourth Proportional to 10,031.85, 15,047.78 and 2,636.28

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Solution

The fourth proportional to 10,031.85, 15,047.78 and 2,636.28 is: 3,954.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,031.85 : 15,047.78 = 2,636.28 : x
  2. Step 2: Convert to fraction form
    10,031.85/15,047.78 = 2,636.28/x
  3. Step 3: Cross multiply
    10,031.85x = 15,047.78 × 2,636.28
  4. Step 4: Simplify right side
    10,031.85x = 39,670,148.28
  5. Step 5: Solve for x
    x = 39,670,148.28/10,031.85
  6. Step 6: Final answer
    x = 3,954.42

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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.