Home / 39,302.73-54,238.90-21,398.04

Finding the Fourth Proportional to 39,302.73, 54,238.90 and 21,398.04

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Solution

The fourth proportional to 39,302.73, 54,238.90 and 21,398.04 is: 29,529.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,302.73 : 54,238.90 = 21,398.04 : x
  2. Step 2: Convert to fraction form
    39,302.73/54,238.90 = 21,398.04/x
  3. Step 3: Cross multiply
    39,302.73x = 54,238.90 × 21,398.04
  4. Step 4: Simplify right side
    39,302.73x = 1,160,606,151.76
  5. Step 5: Solve for x
    x = 1,160,606,151.76/39,302.73
  6. Step 6: Final answer
    x = 29,529.91

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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.