Home / 30,308.04-41,823.90-16,878.78

Finding the Fourth Proportional to 30,308.04, 41,823.90 and 16,878.78

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Solution

The fourth proportional to 30,308.04, 41,823.90 and 16,878.78 is: 23,292.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,308.04 : 41,823.90 = 16,878.78 : x
  2. Step 2: Convert to fraction form
    30,308.04/41,823.90 = 16,878.78/x
  3. Step 3: Cross multiply
    30,308.04x = 41,823.90 × 16,878.78
  4. Step 4: Simplify right side
    30,308.04x = 705,936,406.84
  5. Step 5: Solve for x
    x = 705,936,406.84/30,308.04
  6. Step 6: Final answer
    x = 23,292.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.