Home / 21,184.53-29,223.68-14,376.21

Finding the Fourth Proportional to 21,184.53, 29,223.68 and 14,376.21

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Solution

The fourth proportional to 21,184.53, 29,223.68 and 14,376.21 is: 19,831.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,184.53 : 29,223.68 = 14,376.21 : x
  2. Step 2: Convert to fraction form
    21,184.53/29,223.68 = 14,376.21/x
  3. Step 3: Cross multiply
    21,184.53x = 29,223.68 × 14,376.21
  4. Step 4: Simplify right side
    21,184.53x = 420,125,760.65
  5. Step 5: Solve for x
    x = 420,125,760.65/21,184.53
  6. Step 6: Final answer
    x = 19,831.72

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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.