Home / 38,313.10-52,871.30-21,317

Finding the Fourth Proportional to 38,313.10, 52,871.30 and 21,317

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Solution

The fourth proportional to 38,313.10, 52,871.30 and 21,317 is: 29,417.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,313.10 : 52,871.30 = 21,317 : x
  2. Step 2: Convert to fraction form
    38,313.10/52,871.30 = 21,317/x
  3. Step 3: Cross multiply
    38,313.10x = 52,871.30 × 21,317
  4. Step 4: Simplify right side
    38,313.10x = 1,127,057,502.10
  5. Step 5: Solve for x
    x = 1,127,057,502.10/38,313.10
  6. Step 6: Final answer
    x = 29,417.03

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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.