Home / 31,812.56-43,905.36-19,237.28

Finding the Fourth Proportional to 31,812.56, 43,905.36 and 19,237.28

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Solution

The fourth proportional to 31,812.56, 43,905.36 and 19,237.28 is: 26,549.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,812.56 : 43,905.36 = 19,237.28 : x
  2. Step 2: Convert to fraction form
    31,812.56/43,905.36 = 19,237.28/x
  3. Step 3: Cross multiply
    31,812.56x = 43,905.36 × 19,237.28
  4. Step 4: Simplify right side
    31,812.56x = 844,619,703.82
  5. Step 5: Solve for x
    x = 844,619,703.82/31,812.56
  6. Step 6: Final answer
    x = 26,549.88

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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.