Home / 31,440.84-43,394.96-19,948.28

Finding the Fourth Proportional to 31,440.84, 43,394.96 and 19,948.28

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Solution

The fourth proportional to 31,440.84, 43,394.96 and 19,948.28 is: 27,532.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,440.84 : 43,394.96 = 19,948.28 : x
  2. Step 2: Convert to fraction form
    31,440.84/43,394.96 = 19,948.28/x
  3. Step 3: Cross multiply
    31,440.84x = 43,394.96 × 19,948.28
  4. Step 4: Simplify right side
    31,440.84x = 865,654,812.67
  5. Step 5: Solve for x
    x = 865,654,812.67/31,440.84
  6. Step 6: Final answer
    x = 27,532.81

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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.