Home / 28,282.17-42,419.37-15,655.28

Finding the Fourth Proportional to 28,282.17, 42,419.37 and 15,655.28

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Solution

The fourth proportional to 28,282.17, 42,419.37 and 15,655.28 is: 23,480.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,282.17 : 42,419.37 = 15,655.28 : x
  2. Step 2: Convert to fraction form
    28,282.17/42,419.37 = 15,655.28/x
  3. Step 3: Cross multiply
    28,282.17x = 42,419.37 × 15,655.28
  4. Step 4: Simplify right side
    28,282.17x = 664,087,114.77
  5. Step 5: Solve for x
    x = 664,087,114.77/28,282.17
  6. Step 6: Final answer
    x = 23,480.77

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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.