Home / 28,149.63-38,846.08-15,402.56

Finding the Fourth Proportional to 28,149.63, 38,846.08 and 15,402.56

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Solution

The fourth proportional to 28,149.63, 38,846.08 and 15,402.56 is: 21,255.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,149.63 : 38,846.08 = 15,402.56 : x
  2. Step 2: Convert to fraction form
    28,149.63/38,846.08 = 15,402.56/x
  3. Step 3: Cross multiply
    28,149.63x = 38,846.08 × 15,402.56
  4. Step 4: Simplify right side
    28,149.63x = 598,328,902.99
  5. Step 5: Solve for x
    x = 598,328,902.99/28,149.63
  6. Step 6: Final answer
    x = 21,255.31

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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.