Home / 27,289.20-40,935.69-10,643.70

Finding the Fourth Proportional to 27,289.20, 40,935.69 and 10,643.70

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Solution

The fourth proportional to 27,289.20, 40,935.69 and 10,643.70 is: 15,966.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,289.20 : 40,935.69 = 10,643.70 : x
  2. Step 2: Convert to fraction form
    27,289.20/40,935.69 = 10,643.70/x
  3. Step 3: Cross multiply
    27,289.20x = 40,935.69 × 10,643.70
  4. Step 4: Simplify right side
    27,289.20x = 435,707,203.65
  5. Step 5: Solve for x
    x = 435,707,203.65/27,289.20
  6. Step 6: Final answer
    x = 15,966.29

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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.