Home / 38,317.05-52,878.56-21,089.90

Finding the Fourth Proportional to 38,317.05, 52,878.56 and 21,089.90

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Solution

The fourth proportional to 38,317.05, 52,878.56 and 21,089.90 is: 29,104.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,317.05 : 52,878.56 = 21,089.90 : x
  2. Step 2: Convert to fraction form
    38,317.05/52,878.56 = 21,089.90/x
  3. Step 3: Cross multiply
    38,317.05x = 52,878.56 × 21,089.90
  4. Step 4: Simplify right side
    38,317.05x = 1,115,203,569.29
  5. Step 5: Solve for x
    x = 1,115,203,569.29/38,317.05
  6. Step 6: Final answer
    x = 29,104.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.