Home / 28,504.31-39,323.58-16,402.20

Finding the Fourth Proportional to 28,504.31, 39,323.58 and 16,402.20

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Solution

The fourth proportional to 28,504.31, 39,323.58 and 16,402.20 is: 22,627.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,504.31 : 39,323.58 = 16,402.20 : x
  2. Step 2: Convert to fraction form
    28,504.31/39,323.58 = 16,402.20/x
  3. Step 3: Cross multiply
    28,504.31x = 39,323.58 × 16,402.20
  4. Step 4: Simplify right side
    28,504.31x = 644,993,014.90
  5. Step 5: Solve for x
    x = 644,993,014.90/28,504.31
  6. Step 6: Final answer
    x = 22,627.92

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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.