Home / 30,156.32-41,590.32-19,402.88

Finding the Fourth Proportional to 30,156.32, 41,590.32 and 19,402.88

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Solution

The fourth proportional to 30,156.32, 41,590.32 and 19,402.88 is: 26,759.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,156.32 : 41,590.32 = 19,402.88 : x
  2. Step 2: Convert to fraction form
    30,156.32/41,590.32 = 19,402.88/x
  3. Step 3: Cross multiply
    30,156.32x = 41,590.32 × 19,402.88
  4. Step 4: Simplify right side
    30,156.32x = 806,971,988.12
  5. Step 5: Solve for x
    x = 806,971,988.12/30,156.32
  6. Step 6: Final answer
    x = 26,759.63

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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.