Home / 30,139.52-45,201.72-14,334.80

Finding the Fourth Proportional to 30,139.52, 45,201.72 and 14,334.80

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Solution

The fourth proportional to 30,139.52, 45,201.72 and 14,334.80 is: 21,498.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,139.52 : 45,201.72 = 14,334.80 : x
  2. Step 2: Convert to fraction form
    30,139.52/45,201.72 = 14,334.80/x
  3. Step 3: Cross multiply
    30,139.52x = 45,201.72 × 14,334.80
  4. Step 4: Simplify right side
    30,139.52x = 647,957,615.86
  5. Step 5: Solve for x
    x = 647,957,615.86/30,139.52
  6. Step 6: Final answer
    x = 21,498.60

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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.