Home / 28,808.28-39,762.96-18,764.28

Finding the Fourth Proportional to 28,808.28, 39,762.96 and 18,764.28

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Solution

The fourth proportional to 28,808.28, 39,762.96 and 18,764.28 is: 25,899.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,808.28 : 39,762.96 = 18,764.28 : x
  2. Step 2: Convert to fraction form
    28,808.28/39,762.96 = 18,764.28/x
  3. Step 3: Cross multiply
    28,808.28x = 39,762.96 × 18,764.28
  4. Step 4: Simplify right side
    28,808.28x = 746,123,315.07
  5. Step 5: Solve for x
    x = 746,123,315.07/28,808.28
  6. Step 6: Final answer
    x = 25,899.61

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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.