Home / 30,798.12-42,499.08-18,049.80

Finding the Fourth Proportional to 30,798.12, 42,499.08 and 18,049.80

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Solution

The fourth proportional to 30,798.12, 42,499.08 and 18,049.80 is: 24,907.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,798.12 : 42,499.08 = 18,049.80 : x
  2. Step 2: Convert to fraction form
    30,798.12/42,499.08 = 18,049.80/x
  3. Step 3: Cross multiply
    30,798.12x = 42,499.08 × 18,049.80
  4. Step 4: Simplify right side
    30,798.12x = 767,099,894.18
  5. Step 5: Solve for x
    x = 767,099,894.18/30,798.12
  6. Step 6: Final answer
    x = 24,907.36

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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.