Home / 39,362.88-54,322.30-21,458.10

Finding the Fourth Proportional to 39,362.88, 54,322.30 and 21,458.10

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Solution

The fourth proportional to 39,362.88, 54,322.30 and 21,458.10 is: 29,613.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,362.88 : 54,322.30 = 21,458.10 : x
  2. Step 2: Convert to fraction form
    39,362.88/54,322.30 = 21,458.10/x
  3. Step 3: Cross multiply
    39,362.88x = 54,322.30 × 21,458.10
  4. Step 4: Simplify right side
    39,362.88x = 1,165,653,345.63
  5. Step 5: Solve for x
    x = 1,165,653,345.63/39,362.88
  6. Step 6: Final answer
    x = 29,613.01

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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.