Home / 28,038.96-38,701.20-16,563.92

Finding the Fourth Proportional to 28,038.96, 38,701.20 and 16,563.92

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Solution

The fourth proportional to 28,038.96, 38,701.20 and 16,563.92 is: 22,862.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,038.96 : 38,701.20 = 16,563.92 : x
  2. Step 2: Convert to fraction form
    28,038.96/38,701.20 = 16,563.92/x
  3. Step 3: Cross multiply
    28,038.96x = 38,701.20 × 16,563.92
  4. Step 4: Simplify right side
    28,038.96x = 641,043,580.70
  5. Step 5: Solve for x
    x = 641,043,580.70/28,038.96
  6. Step 6: Final answer
    x = 22,862.60

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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.