Home / 29,277.90-40,385.79-21,613.59

Finding the Fourth Proportional to 29,277.90, 40,385.79 and 21,613.59

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Solution

The fourth proportional to 29,277.90, 40,385.79 and 21,613.59 is: 29,813.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,277.90 : 40,385.79 = 21,613.59 : x
  2. Step 2: Convert to fraction form
    29,277.90/40,385.79 = 21,613.59/x
  3. Step 3: Cross multiply
    29,277.90x = 40,385.79 × 21,613.59
  4. Step 4: Simplify right side
    29,277.90x = 872,881,906.89
  5. Step 5: Solve for x
    x = 872,881,906.89/29,277.90
  6. Step 6: Final answer
    x = 29,813.68

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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.