Home / 30,031.70-45,047.52-12,270.74

Finding the Fourth Proportional to 30,031.70, 45,047.52 and 12,270.74

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Solution

The fourth proportional to 30,031.70, 45,047.52 and 12,270.74 is: 18,406.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,031.70 : 45,047.52 = 12,270.74 : x
  2. Step 2: Convert to fraction form
    30,031.70/45,047.52 = 12,270.74/x
  3. Step 3: Cross multiply
    30,031.70x = 45,047.52 × 12,270.74
  4. Step 4: Simplify right side
    30,031.70x = 552,766,180.33
  5. Step 5: Solve for x
    x = 552,766,180.33/30,031.70
  6. Step 6: Final answer
    x = 18,406.09

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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.