Home / 39,179.52-54,068.10-21,274.68

Finding the Fourth Proportional to 39,179.52, 54,068.10 and 21,274.68

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Solution

The fourth proportional to 39,179.52, 54,068.10 and 21,274.68 is: 29,359.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,179.52 : 54,068.10 = 21,274.68 : x
  2. Step 2: Convert to fraction form
    39,179.52/54,068.10 = 21,274.68/x
  3. Step 3: Cross multiply
    39,179.52x = 54,068.10 × 21,274.68
  4. Step 4: Simplify right side
    39,179.52x = 1,150,281,525.71
  5. Step 5: Solve for x
    x = 1,150,281,525.71/39,179.52
  6. Step 6: Final answer
    x = 29,359.26

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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.