Home / 28,390.29-42,590.60-11,741.28

Finding the Fourth Proportional to 28,390.29, 42,590.60 and 11,741.28

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Solution

The fourth proportional to 28,390.29, 42,590.60 and 11,741.28 is: 17,614.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,390.29 : 42,590.60 = 11,741.28 : x
  2. Step 2: Convert to fraction form
    28,390.29/42,590.60 = 11,741.28/x
  3. Step 3: Cross multiply
    28,390.29x = 42,590.60 × 11,741.28
  4. Step 4: Simplify right side
    28,390.29x = 500,068,101.26
  5. Step 5: Solve for x
    x = 500,068,101.26/28,390.29
  6. Step 6: Final answer
    x = 17,614.05

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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.