Home / 39,288.04-54,217.74-21,383.16

Finding the Fourth Proportional to 39,288.04, 54,217.74 and 21,383.16

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Solution

The fourth proportional to 39,288.04, 54,217.74 and 21,383.16 is: 29,508.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,288.04 : 54,217.74 = 21,383.16 : x
  2. Step 2: Convert to fraction form
    39,288.04/54,217.74 = 21,383.16/x
  3. Step 3: Cross multiply
    39,288.04x = 54,217.74 × 21,383.16
  4. Step 4: Simplify right side
    39,288.04x = 1,159,346,609.26
  5. Step 5: Solve for x
    x = 1,159,346,609.26/39,288.04
  6. Step 6: Final answer
    x = 29,508.89

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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.