Home / 30,984.81-46,451.33-14,356.78

Finding the Fourth Proportional to 30,984.81, 46,451.33 and 14,356.78

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Solution

The fourth proportional to 30,984.81, 46,451.33 and 14,356.78 is: 21,523.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,984.81 : 46,451.33 = 14,356.78 : x
  2. Step 2: Convert to fraction form
    30,984.81/46,451.33 = 14,356.78/x
  3. Step 3: Cross multiply
    30,984.81x = 46,451.33 × 14,356.78
  4. Step 4: Simplify right side
    30,984.81x = 666,891,525.52
  5. Step 5: Solve for x
    x = 666,891,525.52/30,984.81
  6. Step 6: Final answer
    x = 21,523.18

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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.