Home / 30,130.20-45,195.30-14,578.20

Finding the Fourth Proportional to 30,130.20, 45,195.30 and 14,578.20

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Solution

The fourth proportional to 30,130.20, 45,195.30 and 14,578.20 is: 21,867.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,130.20 : 45,195.30 = 14,578.20 : x
  2. Step 2: Convert to fraction form
    30,130.20/45,195.30 = 14,578.20/x
  3. Step 3: Cross multiply
    30,130.20x = 45,195.30 × 14,578.20
  4. Step 4: Simplify right side
    30,130.20x = 658,866,122.46
  5. Step 5: Solve for x
    x = 658,866,122.46/30,130.20
  6. Step 6: Final answer
    x = 21,867.30

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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.