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Finding the Fourth Proportional to 30,839.88, 46,256.08 and 8,655.04

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Solution

The fourth proportional to 30,839.88, 46,256.08 and 8,655.04 is: 12,981.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,839.88 : 46,256.08 = 8,655.04 : x
  2. Step 2: Convert to fraction form
    30,839.88/46,256.08 = 8,655.04/x
  3. Step 3: Cross multiply
    30,839.88x = 46,256.08 × 8,655.04
  4. Step 4: Simplify right side
    30,839.88x = 400,348,222.64
  5. Step 5: Solve for x
    x = 400,348,222.64/30,839.88
  6. Step 6: Final answer
    x = 12,981.51

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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.