Home / 38,399.52-52,988.64-21,171.12

Finding the Fourth Proportional to 38,399.52, 52,988.64 and 21,171.12

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Solution

The fourth proportional to 38,399.52, 52,988.64 and 21,171.12 is: 29,214.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,399.52 : 52,988.64 = 21,171.12 : x
  2. Step 2: Convert to fraction form
    38,399.52/52,988.64 = 21,171.12/x
  3. Step 3: Cross multiply
    38,399.52x = 52,988.64 × 21,171.12
  4. Step 4: Simplify right side
    38,399.52x = 1,121,828,856.08
  5. Step 5: Solve for x
    x = 1,121,828,856.08/38,399.52
  6. Step 6: Final answer
    x = 29,214.66

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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.