Home / 30,098.13-45,156.11-10,378.68

Finding the Fourth Proportional to 30,098.13, 45,156.11 and 10,378.68

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Solution

The fourth proportional to 30,098.13, 45,156.11 and 10,378.68 is: 15,571.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,098.13 : 45,156.11 = 10,378.68 : x
  2. Step 2: Convert to fraction form
    30,098.13/45,156.11 = 10,378.68/x
  3. Step 3: Cross multiply
    30,098.13x = 45,156.11 × 10,378.68
  4. Step 4: Simplify right side
    30,098.13x = 468,660,763.84
  5. Step 5: Solve for x
    x = 468,660,763.84/30,098.13
  6. Step 6: Final answer
    x = 15,571.09

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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.