Home / 28,415.86-42,569.22-15,897.96

Finding the Fourth Proportional to 28,415.86, 42,569.22 and 15,897.96

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Solution

The fourth proportional to 28,415.86, 42,569.22 and 15,897.96 is: 23,816.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,415.86 : 42,569.22 = 15,897.96 : x
  2. Step 2: Convert to fraction form
    28,415.86/42,569.22 = 15,897.96/x
  3. Step 3: Cross multiply
    28,415.86x = 42,569.22 × 15,897.96
  4. Step 4: Simplify right side
    28,415.86x = 676,763,756.79
  5. Step 5: Solve for x
    x = 676,763,756.79/28,415.86
  6. Step 6: Final answer
    x = 23,816.41

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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.