Home / 30,068.21-45,078.01-12,551.15

Finding the Fourth Proportional to 30,068.21, 45,078.01 and 12,551.15

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Solution

The fourth proportional to 30,068.21, 45,078.01 and 12,551.15 is: 18,816.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,068.21 : 45,078.01 = 12,551.15 : x
  2. Step 2: Convert to fraction form
    30,068.21/45,078.01 = 12,551.15/x
  3. Step 3: Cross multiply
    30,068.21x = 45,078.01 × 12,551.15
  4. Step 4: Simplify right side
    30,068.21x = 565,780,865.21
  5. Step 5: Solve for x
    x = 565,780,865.21/30,068.21
  6. Step 6: Final answer
    x = 18,816.58

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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.