Home / 30,119.20-45,178.80-14,567.20

Finding the Fourth Proportional to 30,119.20, 45,178.80 and 14,567.20

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Solution

The fourth proportional to 30,119.20, 45,178.80 and 14,567.20 is: 21,850.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,119.20 : 45,178.80 = 14,567.20 : x
  2. Step 2: Convert to fraction form
    30,119.20/45,178.80 = 14,567.20/x
  3. Step 3: Cross multiply
    30,119.20x = 45,178.80 × 14,567.20
  4. Step 4: Simplify right side
    30,119.20x = 658,128,615.36
  5. Step 5: Solve for x
    x = 658,128,615.36/30,119.20
  6. Step 6: Final answer
    x = 21,850.80

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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.