Home / 28,419.64-42,578.38-16,726.48

Finding the Fourth Proportional to 28,419.64, 42,578.38 and 16,726.48

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Solution

The fourth proportional to 28,419.64, 42,578.38 and 16,726.48 is: 25,059.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,419.64 : 42,578.38 = 16,726.48 : x
  2. Step 2: Convert to fraction form
    28,419.64/42,578.38 = 16,726.48/x
  3. Step 3: Cross multiply
    28,419.64x = 42,578.38 × 16,726.48
  4. Step 4: Simplify right side
    28,419.64x = 712,186,421.50
  5. Step 5: Solve for x
    x = 712,186,421.50/28,419.64
  6. Step 6: Final answer
    x = 25,059.66

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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.