Home / 21,002.84-31,504.32-14,409.04

Finding the Fourth Proportional to 21,002.84, 31,504.32 and 14,409.04

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Solution

The fourth proportional to 21,002.84, 31,504.32 and 14,409.04 is: 21,613.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,002.84 : 31,504.32 = 14,409.04 : x
  2. Step 2: Convert to fraction form
    21,002.84/31,504.32 = 14,409.04/x
  3. Step 3: Cross multiply
    21,002.84x = 31,504.32 × 14,409.04
  4. Step 4: Simplify right side
    21,002.84x = 453,947,007.05
  5. Step 5: Solve for x
    x = 453,947,007.05/21,002.84
  6. Step 6: Final answer
    x = 21,613.60

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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.