Home / 30,828.28-46,240.98-21,440.56

Finding the Fourth Proportional to 30,828.28, 46,240.98 and 21,440.56

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Solution

The fourth proportional to 30,828.28, 46,240.98 and 21,440.56 is: 32,159.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,828.28 : 46,240.98 = 21,440.56 : x
  2. Step 2: Convert to fraction form
    30,828.28/46,240.98 = 21,440.56/x
  3. Step 3: Cross multiply
    30,828.28x = 46,240.98 × 21,440.56
  4. Step 4: Simplify right side
    30,828.28x = 991,432,506.15
  5. Step 5: Solve for x
    x = 991,432,506.15/30,828.28
  6. Step 6: Final answer
    x = 32,159.84

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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.