Home / 40,189.76-60,284.16-19,398.56

Finding the Fourth Proportional to 40,189.76, 60,284.16 and 19,398.56

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Solution

The fourth proportional to 40,189.76, 60,284.16 and 19,398.56 is: 29,097.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,189.76 : 60,284.16 = 19,398.56 : x
  2. Step 2: Convert to fraction form
    40,189.76/60,284.16 = 19,398.56/x
  3. Step 3: Cross multiply
    40,189.76x = 60,284.16 × 19,398.56
  4. Step 4: Simplify right side
    40,189.76x = 1,169,425,894.81
  5. Step 5: Solve for x
    x = 1,169,425,894.81/40,189.76
  6. Step 6: Final answer
    x = 29,097.61

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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.