Home / 21,845.10-32,750.64-10,156.80

Finding the Fourth Proportional to 21,845.10, 32,750.64 and 10,156.80

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Solution

The fourth proportional to 21,845.10, 32,750.64 and 10,156.80 is: 15,227.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,845.10 : 32,750.64 = 10,156.80 : x
  2. Step 2: Convert to fraction form
    21,845.10/32,750.64 = 10,156.80/x
  3. Step 3: Cross multiply
    21,845.10x = 32,750.64 × 10,156.80
  4. Step 4: Simplify right side
    21,845.10x = 332,641,700.35
  5. Step 5: Solve for x
    x = 332,641,700.35/21,845.10
  6. Step 6: Final answer
    x = 15,227.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.