Home / 27,795.40-41,678.70-10,256.20

Finding the Fourth Proportional to 27,795.40, 41,678.70 and 10,256.20

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Solution

The fourth proportional to 27,795.40, 41,678.70 and 10,256.20 is: 15,378.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,795.40 : 41,678.70 = 10,256.20 : x
  2. Step 2: Convert to fraction form
    27,795.40/41,678.70 = 10,256.20/x
  3. Step 3: Cross multiply
    27,795.40x = 41,678.70 × 10,256.20
  4. Step 4: Simplify right side
    27,795.40x = 427,465,082.94
  5. Step 5: Solve for x
    x = 427,465,082.94/27,795.40
  6. Step 6: Final answer
    x = 15,378.99

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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.