Home / 31,288.84-43,179.63-17,142.59

Finding the Fourth Proportional to 31,288.84, 43,179.63 and 17,142.59

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Solution

The fourth proportional to 31,288.84, 43,179.63 and 17,142.59 is: 23,657.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,288.84 : 43,179.63 = 17,142.59 : x
  2. Step 2: Convert to fraction form
    31,288.84/43,179.63 = 17,142.59/x
  3. Step 3: Cross multiply
    31,288.84x = 43,179.63 × 17,142.59
  4. Step 4: Simplify right side
    31,288.84x = 740,210,693.44
  5. Step 5: Solve for x
    x = 740,210,693.44/31,288.84
  6. Step 6: Final answer
    x = 23,657.34

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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.