Home / 30,235.14-45,357.41-15,436.05

Finding the Fourth Proportional to 30,235.14, 45,357.41 and 15,436.05

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Solution

The fourth proportional to 30,235.14, 45,357.41 and 15,436.05 is: 23,156.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,235.14 : 45,357.41 = 15,436.05 : x
  2. Step 2: Convert to fraction form
    30,235.14/45,357.41 = 15,436.05/x
  3. Step 3: Cross multiply
    30,235.14x = 45,357.41 × 15,436.05
  4. Step 4: Simplify right side
    30,235.14x = 700,139,171.45
  5. Step 5: Solve for x
    x = 700,139,171.45/30,235.14
  6. Step 6: Final answer
    x = 23,156.47

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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.