Home / 38,528.12-53,163.45-21,530.22

Finding the Fourth Proportional to 38,528.12, 53,163.45 and 21,530.22

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Solution

The fourth proportional to 38,528.12, 53,163.45 and 21,530.22 is: 29,708.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,528.12 : 53,163.45 = 21,530.22 : x
  2. Step 2: Convert to fraction form
    38,528.12/53,163.45 = 21,530.22/x
  3. Step 3: Cross multiply
    38,528.12x = 53,163.45 × 21,530.22
  4. Step 4: Simplify right side
    38,528.12x = 1,144,620,774.46
  5. Step 5: Solve for x
    x = 1,144,620,774.46/38,528.12
  6. Step 6: Final answer
    x = 29,708.71

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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.