Home / 31,721.70-43,777.32-17,574.50

Finding the Fourth Proportional to 31,721.70, 43,777.32 and 17,574.50

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Solution

The fourth proportional to 31,721.70, 43,777.32 and 17,574.50 is: 24,253.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,721.70 : 43,777.32 = 17,574.50 : x
  2. Step 2: Convert to fraction form
    31,721.70/43,777.32 = 17,574.50/x
  3. Step 3: Cross multiply
    31,721.70x = 43,777.32 × 17,574.50
  4. Step 4: Simplify right side
    31,721.70x = 769,364,510.34
  5. Step 5: Solve for x
    x = 769,364,510.34/31,721.70
  6. Step 6: Final answer
    x = 24,253.57

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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.