Home / 20,463.10-28,238.79-11,510.60

Finding the Fourth Proportional to 20,463.10, 28,238.79 and 11,510.60

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Solution

The fourth proportional to 20,463.10, 28,238.79 and 11,510.60 is: 15,884.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,463.10 : 28,238.79 = 11,510.60 : x
  2. Step 2: Convert to fraction form
    20,463.10/28,238.79 = 11,510.60/x
  3. Step 3: Cross multiply
    20,463.10x = 28,238.79 × 11,510.60
  4. Step 4: Simplify right side
    20,463.10x = 325,045,288.02
  5. Step 5: Solve for x
    x = 325,045,288.02/20,463.10
  6. Step 6: Final answer
    x = 15,884.46

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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.