Home / 30,069.21-45,079.52-12,552.15

Finding the Fourth Proportional to 30,069.21, 45,079.52 and 12,552.15

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Solution

The fourth proportional to 30,069.21, 45,079.52 and 12,552.15 is: 18,818.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,069.21 : 45,079.52 = 12,552.15 : x
  2. Step 2: Convert to fraction form
    30,069.21/45,079.52 = 12,552.15/x
  3. Step 3: Cross multiply
    30,069.21x = 45,079.52 × 12,552.15
  4. Step 4: Simplify right side
    30,069.21x = 565,844,834.21
  5. Step 5: Solve for x
    x = 565,844,834.21/30,069.21
  6. Step 6: Final answer
    x = 18,818.08

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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.