Home / 30,188.88-45,284.49-14,385.78

Finding the Fourth Proportional to 30,188.88, 45,284.49 and 14,385.78

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Solution

The fourth proportional to 30,188.88, 45,284.49 and 14,385.78 is: 21,579.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,188.88 : 45,284.49 = 14,385.78 : x
  2. Step 2: Convert to fraction form
    30,188.88/45,284.49 = 14,385.78/x
  3. Step 3: Cross multiply
    30,188.88x = 45,284.49 × 14,385.78
  4. Step 4: Simplify right side
    30,188.88x = 651,452,710.55
  5. Step 5: Solve for x
    x = 651,452,710.55/30,188.88
  6. Step 6: Final answer
    x = 21,579.23

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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.