Home / 31,529.14-43,510.36-17,381.68

Finding the Fourth Proportional to 31,529.14, 43,510.36 and 17,381.68

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Solution

The fourth proportional to 31,529.14, 43,510.36 and 17,381.68 is: 23,986.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,529.14 : 43,510.36 = 17,381.68 : x
  2. Step 2: Convert to fraction form
    31,529.14/43,510.36 = 17,381.68/x
  3. Step 3: Cross multiply
    31,529.14x = 43,510.36 × 17,381.68
  4. Step 4: Simplify right side
    31,529.14x = 756,283,154.20
  5. Step 5: Solve for x
    x = 756,283,154.20/31,529.14
  6. Step 6: Final answer
    x = 23,986.80

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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.