Home / 30,054.52-45,085.89-12,520.25

Finding the Fourth Proportional to 30,054.52, 45,085.89 and 12,520.25

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Solution

The fourth proportional to 30,054.52, 45,085.89 and 12,520.25 is: 18,782.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,054.52 : 45,085.89 = 12,520.25 : x
  2. Step 2: Convert to fraction form
    30,054.52/45,085.89 = 12,520.25/x
  3. Step 3: Cross multiply
    30,054.52x = 45,085.89 × 12,520.25
  4. Step 4: Simplify right side
    30,054.52x = 564,486,614.27
  5. Step 5: Solve for x
    x = 564,486,614.27/30,054.52
  6. Step 6: Final answer
    x = 18,782.09

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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.