Home / 30,042.90-45,002.85-16,867.62

Finding the Fourth Proportional to 30,042.90, 45,002.85 and 16,867.62

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Solution

The fourth proportional to 30,042.90, 45,002.85 and 16,867.62 is: 25,266.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,042.90 : 45,002.85 = 16,867.62 : x
  2. Step 2: Convert to fraction form
    30,042.90/45,002.85 = 16,867.62/x
  3. Step 3: Cross multiply
    30,042.90x = 45,002.85 × 16,867.62
  4. Step 4: Simplify right side
    30,042.90x = 759,090,972.72
  5. Step 5: Solve for x
    x = 759,090,972.72/30,042.90
  6. Step 6: Final answer
    x = 25,266.90

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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.