Home / 28,581.20-39,400.93-20,056.92

Finding the Fourth Proportional to 28,581.20, 39,400.93 and 20,056.92

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Solution

The fourth proportional to 28,581.20, 39,400.93 and 20,056.92 is: 27,649.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,581.20 : 39,400.93 = 20,056.92 : x
  2. Step 2: Convert to fraction form
    28,581.20/39,400.93 = 20,056.92/x
  3. Step 3: Cross multiply
    28,581.20x = 39,400.93 × 20,056.92
  4. Step 4: Simplify right side
    28,581.20x = 790,261,178.25
  5. Step 5: Solve for x
    x = 790,261,178.25/28,581.20
  6. Step 6: Final answer
    x = 27,649.68

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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.