Home / 30,102.77-41,555.52-21,495.39

Finding the Fourth Proportional to 30,102.77, 41,555.52 and 21,495.39

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Solution

The fourth proportional to 30,102.77, 41,555.52 and 21,495.39 is: 29,673.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,102.77 : 41,555.52 = 21,495.39 : x
  2. Step 2: Convert to fraction form
    30,102.77/41,555.52 = 21,495.39/x
  3. Step 3: Cross multiply
    30,102.77x = 41,555.52 × 21,495.39
  4. Step 4: Simplify right side
    30,102.77x = 893,252,109.05
  5. Step 5: Solve for x
    x = 893,252,109.05/30,102.77
  6. Step 6: Final answer
    x = 29,673.42

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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.