Home / 30,845.12-46,154-21,812.56

Finding the Fourth Proportional to 30,845.12, 46,154 and 21,812.56

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Solution

The fourth proportional to 30,845.12, 46,154 and 21,812.56 is: 32,638.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,845.12 : 46,154 = 21,812.56 : x
  2. Step 2: Convert to fraction form
    30,845.12/46,154 = 21,812.56/x
  3. Step 3: Cross multiply
    30,845.12x = 46,154 × 21,812.56
  4. Step 4: Simplify right side
    30,845.12x = 1,006,736,894.24
  5. Step 5: Solve for x
    x = 1,006,736,894.24/30,845.12
  6. Step 6: Final answer
    x = 32,638.45

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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.