Home / 17,980.38-26,970.48-4,831.65

Finding the Fourth Proportional to 17,980.38, 26,970.48 and 4,831.65

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Solution

The fourth proportional to 17,980.38, 26,970.48 and 4,831.65 is: 7,247.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,980.38 : 26,970.48 = 4,831.65 : x
  2. Step 2: Convert to fraction form
    17,980.38/26,970.48 = 4,831.65/x
  3. Step 3: Cross multiply
    17,980.38x = 26,970.48 × 4,831.65
  4. Step 4: Simplify right side
    17,980.38x = 130,311,919.69
  5. Step 5: Solve for x
    x = 130,311,919.69/17,980.38
  6. Step 6: Final answer
    x = 7,247.45

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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.