Home / 28,191.56-38,903.83-16,255.40

Finding the Fourth Proportional to 28,191.56, 38,903.83 and 16,255.40

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Solution

The fourth proportional to 28,191.56, 38,903.83 and 16,255.40 is: 22,432.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,191.56 : 38,903.83 = 16,255.40 : x
  2. Step 2: Convert to fraction form
    28,191.56/38,903.83 = 16,255.40/x
  3. Step 3: Cross multiply
    28,191.56x = 38,903.83 × 16,255.40
  4. Step 4: Simplify right side
    28,191.56x = 632,397,083.02
  5. Step 5: Solve for x
    x = 632,397,083.02/28,191.56
  6. Step 6: Final answer
    x = 22,432.15

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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.