Home / 31,703.49-43,740.91-18,272.92

Finding the Fourth Proportional to 31,703.49, 43,740.91 and 18,272.92

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Solution

The fourth proportional to 31,703.49, 43,740.91 and 18,272.92 is: 25,210.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,703.49 : 43,740.91 = 18,272.92 : x
  2. Step 2: Convert to fraction form
    31,703.49/43,740.91 = 18,272.92/x
  3. Step 3: Cross multiply
    31,703.49x = 43,740.91 × 18,272.92
  4. Step 4: Simplify right side
    31,703.49x = 799,274,021.64
  5. Step 5: Solve for x
    x = 799,274,021.64/31,703.49
  6. Step 6: Final answer
    x = 25,210.92

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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.