Home / 39,206.16-54,103.68-21,300.48

Finding the Fourth Proportional to 39,206.16, 54,103.68 and 21,300.48

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Solution

The fourth proportional to 39,206.16, 54,103.68 and 21,300.48 is: 29,394.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,206.16 : 54,103.68 = 21,300.48 : x
  2. Step 2: Convert to fraction form
    39,206.16/54,103.68 = 21,300.48/x
  3. Step 3: Cross multiply
    39,206.16x = 54,103.68 × 21,300.48
  4. Step 4: Simplify right side
    39,206.16x = 1,152,434,353.77
  5. Step 5: Solve for x
    x = 1,152,434,353.77/39,206.16
  6. Step 6: Final answer
    x = 29,394.22

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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.