Home / 39,288.34-54,217.91-21,383.48

Finding the Fourth Proportional to 39,288.34, 54,217.91 and 21,383.48

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Solution

The fourth proportional to 39,288.34, 54,217.91 and 21,383.48 is: 29,509.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,288.34 : 54,217.91 = 21,383.48 : x
  2. Step 2: Convert to fraction form
    39,288.34/54,217.91 = 21,383.48/x
  3. Step 3: Cross multiply
    39,288.34x = 54,217.91 × 21,383.48
  4. Step 4: Simplify right side
    39,288.34x = 1,159,367,579.81
  5. Step 5: Solve for x
    x = 1,159,367,579.81/39,288.34
  6. Step 6: Final answer
    x = 29,509.20

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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.