Home / 21,828.10-32,720.55-10,725.70

Finding the Fourth Proportional to 21,828.10, 32,720.55 and 10,725.70

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Solution

The fourth proportional to 21,828.10, 32,720.55 and 10,725.70 is: 16,077.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,828.10 : 32,720.55 = 10,725.70 : x
  2. Step 2: Convert to fraction form
    21,828.10/32,720.55 = 10,725.70/x
  3. Step 3: Cross multiply
    21,828.10x = 32,720.55 × 10,725.70
  4. Step 4: Simplify right side
    21,828.10x = 350,950,803.14
  5. Step 5: Solve for x
    x = 350,950,803.14/21,828.10
  6. Step 6: Final answer
    x = 16,077.94

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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.