Home / 40,786.56-56,225.88-28,828.80

Finding the Fourth Proportional to 40,786.56, 56,225.88 and 28,828.80

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Solution

The fourth proportional to 40,786.56, 56,225.88 and 28,828.80 is: 39,741.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,786.56 : 56,225.88 = 28,828.80 : x
  2. Step 2: Convert to fraction form
    40,786.56/56,225.88 = 28,828.80/x
  3. Step 3: Cross multiply
    40,786.56x = 56,225.88 × 28,828.80
  4. Step 4: Simplify right side
    40,786.56x = 1,620,924,649.34
  5. Step 5: Solve for x
    x = 1,620,924,649.34/40,786.56
  6. Step 6: Final answer
    x = 39,741.64

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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.