Home / 31,455.91-43,409.28-18,027.46

Finding the Fourth Proportional to 31,455.91, 43,409.28 and 18,027.46

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Solution

The fourth proportional to 31,455.91, 43,409.28 and 18,027.46 is: 24,877.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,455.91 : 43,409.28 = 18,027.46 : x
  2. Step 2: Convert to fraction form
    31,455.91/43,409.28 = 18,027.46/x
  3. Step 3: Cross multiply
    31,455.91x = 43,409.28 × 18,027.46
  4. Step 4: Simplify right side
    31,455.91x = 782,559,058.83
  5. Step 5: Solve for x
    x = 782,559,058.83/31,455.91
  6. Step 6: Final answer
    x = 24,877.97

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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.