Home / 30,286.95-45,528.83-30,139.32

Finding the Fourth Proportional to 30,286.95, 45,528.83 and 30,139.32

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Solution

The fourth proportional to 30,286.95, 45,528.83 and 30,139.32 is: 45,306.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,286.95 : 45,528.83 = 30,139.32 : x
  2. Step 2: Convert to fraction form
    30,286.95/45,528.83 = 30,139.32/x
  3. Step 3: Cross multiply
    30,286.95x = 45,528.83 × 30,139.32
  4. Step 4: Simplify right side
    30,286.95x = 1,372,208,109.65
  5. Step 5: Solve for x
    x = 1,372,208,109.65/30,286.95
  6. Step 6: Final answer
    x = 45,306.92

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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.