Home / 31,395.84-43,313.67-20,062.41

Finding the Fourth Proportional to 31,395.84, 43,313.67 and 20,062.41

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Solution

The fourth proportional to 31,395.84, 43,313.67 and 20,062.41 is: 27,678.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,395.84 : 43,313.67 = 20,062.41 : x
  2. Step 2: Convert to fraction form
    31,395.84/43,313.67 = 20,062.41/x
  3. Step 3: Cross multiply
    31,395.84x = 43,313.67 × 20,062.41
  4. Step 4: Simplify right side
    31,395.84x = 868,976,606.14
  5. Step 5: Solve for x
    x = 868,976,606.14/31,395.84
  6. Step 6: Final answer
    x = 27,678.08

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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.