Home / 39,371.79-54,332.09-21,467.15

Finding the Fourth Proportional to 39,371.79, 54,332.09 and 21,467.15

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Solution

The fourth proportional to 39,371.79, 54,332.09 and 21,467.15 is: 29,624.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,371.79 : 54,332.09 = 21,467.15 : x
  2. Step 2: Convert to fraction form
    39,371.79/54,332.09 = 21,467.15/x
  3. Step 3: Cross multiply
    39,371.79x = 54,332.09 × 21,467.15
  4. Step 4: Simplify right side
    39,371.79x = 1,166,354,746.85
  5. Step 5: Solve for x
    x = 1,166,354,746.85/39,371.79
  6. Step 6: Final answer
    x = 29,624.12

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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.