Home / 35,749.40-49,299.99-21,407.09

Finding the Fourth Proportional to 35,749.40, 49,299.99 and 21,407.09

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Solution

The fourth proportional to 35,749.40, 49,299.99 and 21,407.09 is: 29,521.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,749.40 : 49,299.99 = 21,407.09 : x
  2. Step 2: Convert to fraction form
    35,749.40/49,299.99 = 21,407.09/x
  3. Step 3: Cross multiply
    35,749.40x = 49,299.99 × 21,407.09
  4. Step 4: Simplify right side
    35,749.40x = 1,055,369,116.57
  5. Step 5: Solve for x
    x = 1,055,369,116.57/35,749.40
  6. Step 6: Final answer
    x = 29,521.31

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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.