Home / 31,786.65-43,853.47-18,353.00

Finding the Fourth Proportional to 31,786.65, 43,853.47 and 18,353.00

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Solution

The fourth proportional to 31,786.65, 43,853.47 and 18,353.00 is: 25,320.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,786.65 : 43,853.47 = 18,353.00 : x
  2. Step 2: Convert to fraction form
    31,786.65/43,853.47 = 18,353.00/x
  3. Step 3: Cross multiply
    31,786.65x = 43,853.47 × 18,353.00
  4. Step 4: Simplify right side
    31,786.65x = 804,842,798.66
  5. Step 5: Solve for x
    x = 804,842,798.66/31,786.65
  6. Step 6: Final answer
    x = 25,320.15

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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.