Home / 30,062.45-45,092.39-7,875.34

Finding the Fourth Proportional to 30,062.45, 45,092.39 and 7,875.34

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Solution

The fourth proportional to 30,062.45, 45,092.39 and 7,875.34 is: 11,812.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,062.45 : 45,092.39 = 7,875.34 : x
  2. Step 2: Convert to fraction form
    30,062.45/45,092.39 = 7,875.34/x
  3. Step 3: Cross multiply
    30,062.45x = 45,092.39 × 7,875.34
  4. Step 4: Simplify right side
    30,062.45x = 355,117,750.55
  5. Step 5: Solve for x
    x = 355,117,750.55/30,062.45
  6. Step 6: Final answer
    x = 11,812.67

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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.