Home / 30,238.71-45,336.39-14,219.28

Finding the Fourth Proportional to 30,238.71, 45,336.39 and 14,219.28

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Solution

The fourth proportional to 30,238.71, 45,336.39 and 14,219.28 is: 21,318.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,238.71 : 45,336.39 = 14,219.28 : x
  2. Step 2: Convert to fraction form
    30,238.71/45,336.39 = 14,219.28/x
  3. Step 3: Cross multiply
    30,238.71x = 45,336.39 × 14,219.28
  4. Step 4: Simplify right side
    30,238.71x = 644,650,823.60
  5. Step 5: Solve for x
    x = 644,650,823.60/30,238.71
  6. Step 6: Final answer
    x = 21,318.73

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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.