Home / 28,569.26-42,881.60-13,788.58

Finding the Fourth Proportional to 28,569.26, 42,881.60 and 13,788.58

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Solution

The fourth proportional to 28,569.26, 42,881.60 and 13,788.58 is: 20,696.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,569.26 : 42,881.60 = 13,788.58 : x
  2. Step 2: Convert to fraction form
    28,569.26/42,881.60 = 13,788.58/x
  3. Step 3: Cross multiply
    28,569.26x = 42,881.60 × 13,788.58
  4. Step 4: Simplify right side
    28,569.26x = 591,276,372.13
  5. Step 5: Solve for x
    x = 591,276,372.13/28,569.26
  6. Step 6: Final answer
    x = 20,696.24

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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.