Home / 30,590.72-45,770.12-18,117.44

Finding the Fourth Proportional to 30,590.72, 45,770.12 and 18,117.44

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Solution

The fourth proportional to 30,590.72, 45,770.12 and 18,117.44 is: 27,107.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,590.72 : 45,770.12 = 18,117.44 : x
  2. Step 2: Convert to fraction form
    30,590.72/45,770.12 = 18,117.44/x
  3. Step 3: Cross multiply
    30,590.72x = 45,770.12 × 18,117.44
  4. Step 4: Simplify right side
    30,590.72x = 829,237,402.89
  5. Step 5: Solve for x
    x = 829,237,402.89/30,590.72
  6. Step 6: Final answer
    x = 27,107.48

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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.