Home / 28,808.10-43,256.70-15,686.10

Finding the Fourth Proportional to 28,808.10, 43,256.70 and 15,686.10

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Solution

The fourth proportional to 28,808.10, 43,256.70 and 15,686.10 is: 23,553.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,808.10 : 43,256.70 = 15,686.10 : x
  2. Step 2: Convert to fraction form
    28,808.10/43,256.70 = 15,686.10/x
  3. Step 3: Cross multiply
    28,808.10x = 43,256.70 × 15,686.10
  4. Step 4: Simplify right side
    28,808.10x = 678,528,921.87
  5. Step 5: Solve for x
    x = 678,528,921.87/28,808.10
  6. Step 6: Final answer
    x = 23,553.41

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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.