Home / 31,816.56-43,899.66-19,875.54

Finding the Fourth Proportional to 31,816.56, 43,899.66 and 19,875.54

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Solution

The fourth proportional to 31,816.56, 43,899.66 and 19,875.54 is: 27,423.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,816.56 : 43,899.66 = 19,875.54 : x
  2. Step 2: Convert to fraction form
    31,816.56/43,899.66 = 19,875.54/x
  3. Step 3: Cross multiply
    31,816.56x = 43,899.66 × 19,875.54
  4. Step 4: Simplify right side
    31,816.56x = 872,529,448.32
  5. Step 5: Solve for x
    x = 872,529,448.32/31,816.56
  6. Step 6: Final answer
    x = 27,423.75

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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.