Home / 28,225.80-38,947.50-16,892.70

Finding the Fourth Proportional to 28,225.80, 38,947.50 and 16,892.70

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Solution

The fourth proportional to 28,225.80, 38,947.50 and 16,892.70 is: 23,309.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,225.80 : 38,947.50 = 16,892.70 : x
  2. Step 2: Convert to fraction form
    28,225.80/38,947.50 = 16,892.70/x
  3. Step 3: Cross multiply
    28,225.80x = 38,947.50 × 16,892.70
  4. Step 4: Simplify right side
    28,225.80x = 657,928,433.25
  5. Step 5: Solve for x
    x = 657,928,433.25/28,225.80
  6. Step 6: Final answer
    x = 23,309.47

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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.