Home / 28,525.40-39,362.49-16,422.63

Finding the Fourth Proportional to 28,525.40, 39,362.49 and 16,422.63

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Solution

The fourth proportional to 28,525.40, 39,362.49 and 16,422.63 is: 22,661.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,525.40 : 39,362.49 = 16,422.63 : x
  2. Step 2: Convert to fraction form
    28,525.40/39,362.49 = 16,422.63/x
  3. Step 3: Cross multiply
    28,525.40x = 39,362.49 × 16,422.63
  4. Step 4: Simplify right side
    28,525.40x = 646,435,609.15
  5. Step 5: Solve for x
    x = 646,435,609.15/28,525.40
  6. Step 6: Final answer
    x = 22,661.76

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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.