Home / 30,219.40-45,329.10-8,036.20

Finding the Fourth Proportional to 30,219.40, 45,329.10 and 8,036.20

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Solution

The fourth proportional to 30,219.40, 45,329.10 and 8,036.20 is: 12,054.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,219.40 : 45,329.10 = 8,036.20 : x
  2. Step 2: Convert to fraction form
    30,219.40/45,329.10 = 8,036.20/x
  3. Step 3: Cross multiply
    30,219.40x = 45,329.10 × 8,036.20
  4. Step 4: Simplify right side
    30,219.40x = 364,273,713.42
  5. Step 5: Solve for x
    x = 364,273,713.42/30,219.40
  6. Step 6: Final answer
    x = 12,054.30

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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.