Home / 30,286.75-45,431.95-9,510.25

Finding the Fourth Proportional to 30,286.75, 45,431.95 and 9,510.25

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Solution

The fourth proportional to 30,286.75, 45,431.95 and 9,510.25 is: 14,265.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,286.75 : 45,431.95 = 9,510.25 : x
  2. Step 2: Convert to fraction form
    30,286.75/45,431.95 = 9,510.25/x
  3. Step 3: Cross multiply
    30,286.75x = 45,431.95 × 9,510.25
  4. Step 4: Simplify right side
    30,286.75x = 432,069,202.49
  5. Step 5: Solve for x
    x = 432,069,202.49/30,286.75
  6. Step 6: Final answer
    x = 14,265.95

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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.