Home / 40,819.75-56,328.12-22,911.28

Finding the Fourth Proportional to 40,819.75, 56,328.12 and 22,911.28

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Solution

The fourth proportional to 40,819.75, 56,328.12 and 22,911.28 is: 31,615.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,819.75 : 56,328.12 = 22,911.28 : x
  2. Step 2: Convert to fraction form
    40,819.75/56,328.12 = 22,911.28/x
  3. Step 3: Cross multiply
    40,819.75x = 56,328.12 × 22,911.28
  4. Step 4: Simplify right side
    40,819.75x = 1,290,549,329.19
  5. Step 5: Solve for x
    x = 1,290,549,329.19/40,819.75
  6. Step 6: Final answer
    x = 31,615.81

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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.