Home / 31,613.01-43,630.53-18,866.73

Finding the Fourth Proportional to 31,613.01, 43,630.53 and 18,866.73

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Solution

The fourth proportional to 31,613.01, 43,630.53 and 18,866.73 is: 26,038.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,613.01 : 43,630.53 = 18,866.73 : x
  2. Step 2: Convert to fraction form
    31,613.01/43,630.53 = 18,866.73/x
  3. Step 3: Cross multiply
    31,613.01x = 43,630.53 × 18,866.73
  4. Step 4: Simplify right side
    31,613.01x = 823,165,429.27
  5. Step 5: Solve for x
    x = 823,165,429.27/31,613.01
  6. Step 6: Final answer
    x = 26,038.82

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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.