Home / 15,831.56-23,630.42-13,963.84

Finding the Fourth Proportional to 15,831.56, 23,630.42 and 13,963.84

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Solution

The fourth proportional to 15,831.56, 23,630.42 and 13,963.84 is: 20,842.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,831.56 : 23,630.42 = 13,963.84 : x
  2. Step 2: Convert to fraction form
    15,831.56/23,630.42 = 13,963.84/x
  3. Step 3: Cross multiply
    15,831.56x = 23,630.42 × 13,963.84
  4. Step 4: Simplify right side
    15,831.56x = 329,971,404.01
  5. Step 5: Solve for x
    x = 329,971,404.01/15,831.56
  6. Step 6: Final answer
    x = 20,842.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.