Home / 31,437.26-43,381.80-17,287.40

Finding the Fourth Proportional to 31,437.26, 43,381.80 and 17,287.40

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Solution

The fourth proportional to 31,437.26, 43,381.80 and 17,287.40 is: 23,855.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,437.26 : 43,381.80 = 17,287.40 : x
  2. Step 2: Convert to fraction form
    31,437.26/43,381.80 = 17,287.40/x
  3. Step 3: Cross multiply
    31,437.26x = 43,381.80 × 17,287.40
  4. Step 4: Simplify right side
    31,437.26x = 749,958,529.32
  5. Step 5: Solve for x
    x = 749,958,529.32/31,437.26
  6. Step 6: Final answer
    x = 23,855.72

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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.