Home / 28,561.30-39,414.74-15,814.87

Finding the Fourth Proportional to 28,561.30, 39,414.74 and 15,814.87

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Solution

The fourth proportional to 28,561.30, 39,414.74 and 15,814.87 is: 21,824.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,561.30 : 39,414.74 = 15,814.87 : x
  2. Step 2: Convert to fraction form
    28,561.30/39,414.74 = 15,814.87/x
  3. Step 3: Cross multiply
    28,561.30x = 39,414.74 × 15,814.87
  4. Step 4: Simplify right side
    28,561.30x = 623,338,811.57
  5. Step 5: Solve for x
    x = 623,338,811.57/28,561.30
  6. Step 6: Final answer
    x = 21,824.60

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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.