Home / 21,440.48-29,585.20-12,007.52

Finding the Fourth Proportional to 21,440.48, 29,585.20 and 12,007.52

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Solution

The fourth proportional to 21,440.48, 29,585.20 and 12,007.52 is: 16,568.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,440.48 : 29,585.20 = 12,007.52 : x
  2. Step 2: Convert to fraction form
    21,440.48/29,585.20 = 12,007.52/x
  3. Step 3: Cross multiply
    21,440.48x = 29,585.20 × 12,007.52
  4. Step 4: Simplify right side
    21,440.48x = 355,244,880.70
  5. Step 5: Solve for x
    x = 355,244,880.70/21,440.48
  6. Step 6: Final answer
    x = 16,568.89

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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.