Home / 31,391.74-43,320.63-17,245.50

Finding the Fourth Proportional to 31,391.74, 43,320.63 and 17,245.50

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Solution

The fourth proportional to 31,391.74, 43,320.63 and 17,245.50 is: 23,798.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,391.74 : 43,320.63 = 17,245.50 : x
  2. Step 2: Convert to fraction form
    31,391.74/43,320.63 = 17,245.50/x
  3. Step 3: Cross multiply
    31,391.74x = 43,320.63 × 17,245.50
  4. Step 4: Simplify right side
    31,391.74x = 747,085,924.67
  5. Step 5: Solve for x
    x = 747,085,924.67/31,391.74
  6. Step 6: Final answer
    x = 23,798.81

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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.