Home / 30,348.72-45,551.52-18,684.72

Finding the Fourth Proportional to 30,348.72, 45,551.52 and 18,684.72

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Solution

The fourth proportional to 30,348.72, 45,551.52 and 18,684.72 is: 28,044.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,348.72 : 45,551.52 = 18,684.72 : x
  2. Step 2: Convert to fraction form
    30,348.72/45,551.52 = 18,684.72/x
  3. Step 3: Cross multiply
    30,348.72x = 45,551.52 × 18,684.72
  4. Step 4: Simplify right side
    30,348.72x = 851,117,396.77
  5. Step 5: Solve for x
    x = 851,117,396.77/30,348.72
  6. Step 6: Final answer
    x = 28,044.59

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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.