Home / 31,480.98-43,443.24-18,051.90

Finding the Fourth Proportional to 31,480.98, 43,443.24 and 18,051.90

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Solution

The fourth proportional to 31,480.98, 43,443.24 and 18,051.90 is: 24,911.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,480.98 : 43,443.24 = 18,051.90 : x
  2. Step 2: Convert to fraction form
    31,480.98/43,443.24 = 18,051.90/x
  3. Step 3: Cross multiply
    31,480.98x = 43,443.24 × 18,051.90
  4. Step 4: Simplify right side
    31,480.98x = 784,233,024.16
  5. Step 5: Solve for x
    x = 784,233,024.16/31,480.98
  6. Step 6: Final answer
    x = 24,911.33

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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.