Home / 30,235.39-45,357.78-15,436.30

Finding the Fourth Proportional to 30,235.39, 45,357.78 and 15,436.30

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Solution

The fourth proportional to 30,235.39, 45,357.78 and 15,436.30 is: 23,156.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,235.39 : 45,357.78 = 15,436.30 : x
  2. Step 2: Convert to fraction form
    30,235.39/45,357.78 = 15,436.30/x
  3. Step 3: Cross multiply
    30,235.39x = 45,357.78 × 15,436.30
  4. Step 4: Simplify right side
    30,235.39x = 700,156,299.41
  5. Step 5: Solve for x
    x = 700,156,299.41/30,235.39
  6. Step 6: Final answer
    x = 23,156.85

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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.