Home / 28,051.86-42,041.42-11,392.38

Finding the Fourth Proportional to 28,051.86, 42,041.42 and 11,392.38

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Solution

The fourth proportional to 28,051.86, 42,041.42 and 11,392.38 is: 17,073.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,051.86 : 42,041.42 = 11,392.38 : x
  2. Step 2: Convert to fraction form
    28,051.86/42,041.42 = 11,392.38/x
  3. Step 3: Cross multiply
    28,051.86x = 42,041.42 × 11,392.38
  4. Step 4: Simplify right side
    28,051.86x = 478,951,565.21
  5. Step 5: Solve for x
    x = 478,951,565.21/28,051.86
  6. Step 6: Final answer
    x = 17,073.79

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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.