Home / 39,330.39-54,275.68-21,425.41

Finding the Fourth Proportional to 39,330.39, 54,275.68 and 21,425.41

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Solution

The fourth proportional to 39,330.39, 54,275.68 and 21,425.41 is: 29,566.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,330.39 : 54,275.68 = 21,425.41 : x
  2. Step 2: Convert to fraction form
    39,330.39/54,275.68 = 21,425.41/x
  3. Step 3: Cross multiply
    39,330.39x = 54,275.68 × 21,425.41
  4. Step 4: Simplify right side
    39,330.39x = 1,162,878,697.03
  5. Step 5: Solve for x
    x = 1,162,878,697.03/39,330.39
  6. Step 6: Final answer
    x = 29,566.93

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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.