Home / 19,831.56-27,376.34-12,670.89

Finding the Fourth Proportional to 19,831.56, 27,376.34 and 12,670.89

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Solution

The fourth proportional to 19,831.56, 27,376.34 and 12,670.89 is: 17,491.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,831.56 : 27,376.34 = 12,670.89 : x
  2. Step 2: Convert to fraction form
    19,831.56/27,376.34 = 12,670.89/x
  3. Step 3: Cross multiply
    19,831.56x = 27,376.34 × 12,670.89
  4. Step 4: Simplify right side
    19,831.56x = 346,882,529.39
  5. Step 5: Solve for x
    x = 346,882,529.39/19,831.56
  6. Step 6: Final answer
    x = 17,491.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.