Home / 28,080.28-42,110.70-15,619.24

Finding the Fourth Proportional to 28,080.28, 42,110.70 and 15,619.24

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Solution

The fourth proportional to 28,080.28, 42,110.70 and 15,619.24 is: 23,423.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,080.28 : 42,110.70 = 15,619.24 : x
  2. Step 2: Convert to fraction form
    28,080.28/42,110.70 = 15,619.24/x
  3. Step 3: Cross multiply
    28,080.28x = 42,110.70 × 15,619.24
  4. Step 4: Simplify right side
    28,080.28x = 657,737,129.87
  5. Step 5: Solve for x
    x = 657,737,129.87/28,080.28
  6. Step 6: Final answer
    x = 23,423.45

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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.