Home / 40,538.61-55,966.55-30,902.85

Finding the Fourth Proportional to 40,538.61, 55,966.55 and 30,902.85

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Solution

The fourth proportional to 40,538.61, 55,966.55 and 30,902.85 is: 42,663.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,538.61 : 55,966.55 = 30,902.85 : x
  2. Step 2: Convert to fraction form
    40,538.61/55,966.55 = 30,902.85/x
  3. Step 3: Cross multiply
    40,538.61x = 55,966.55 × 30,902.85
  4. Step 4: Simplify right side
    40,538.61x = 1,729,525,745.15
  5. Step 5: Solve for x
    x = 1,729,525,745.15/40,538.61
  6. Step 6: Final answer
    x = 42,663.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.