Home / 30,423.60-41,984.24-16,996.20

Finding the Fourth Proportional to 30,423.60, 41,984.24 and 16,996.20

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Solution

The fourth proportional to 30,423.60, 41,984.24 and 16,996.20 is: 23,454.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,423.60 : 41,984.24 = 16,996.20 : x
  2. Step 2: Convert to fraction form
    30,423.60/41,984.24 = 16,996.20/x
  3. Step 3: Cross multiply
    30,423.60x = 41,984.24 × 16,996.20
  4. Step 4: Simplify right side
    30,423.60x = 713,572,539.89
  5. Step 5: Solve for x
    x = 713,572,539.89/30,423.60
  6. Step 6: Final answer
    x = 23,454.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.