Home / 22,749.90-31,394.79-13,316.58

Finding the Fourth Proportional to 22,749.90, 31,394.79 and 13,316.58

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Solution

The fourth proportional to 22,749.90, 31,394.79 and 13,316.58 is: 18,376.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,749.90 : 31,394.79 = 13,316.58 : x
  2. Step 2: Convert to fraction form
    22,749.90/31,394.79 = 13,316.58/x
  3. Step 3: Cross multiply
    22,749.90x = 31,394.79 × 13,316.58
  4. Step 4: Simplify right side
    22,749.90x = 418,071,232.62
  5. Step 5: Solve for x
    x = 418,071,232.62/22,749.90
  6. Step 6: Final answer
    x = 18,376.84

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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.