Home / 30,839.79-46,278.14-28,330.21

Finding the Fourth Proportional to 30,839.79, 46,278.14 and 28,330.21

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Solution

The fourth proportional to 30,839.79, 46,278.14 and 28,330.21 is: 42,512.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,839.79 : 46,278.14 = 28,330.21 : x
  2. Step 2: Convert to fraction form
    30,839.79/46,278.14 = 28,330.21/x
  3. Step 3: Cross multiply
    30,839.79x = 46,278.14 × 28,330.21
  4. Step 4: Simplify right side
    30,839.79x = 1,311,069,579.84
  5. Step 5: Solve for x
    x = 1,311,069,579.84/30,839.79
  6. Step 6: Final answer
    x = 42,512.27

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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.