Home / 30,902.56-42,629.76-19,552.96

Finding the Fourth Proportional to 30,902.56, 42,629.76 and 19,552.96

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Solution

The fourth proportional to 30,902.56, 42,629.76 and 19,552.96 is: 26,973.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,902.56 : 42,629.76 = 19,552.96 : x
  2. Step 2: Convert to fraction form
    30,902.56/42,629.76 = 19,552.96/x
  3. Step 3: Cross multiply
    30,902.56x = 42,629.76 × 19,552.96
  4. Step 4: Simplify right side
    30,902.56x = 833,537,992.09
  5. Step 5: Solve for x
    x = 833,537,992.09/30,902.56
  6. Step 6: Final answer
    x = 26,973.10

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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.