Home / 39,568.68-54,602.64-21,660.12

Finding the Fourth Proportional to 39,568.68, 54,602.64 and 21,660.12

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Solution

The fourth proportional to 39,568.68, 54,602.64 and 21,660.12 is: 29,889.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,568.68 : 54,602.64 = 21,660.12 : x
  2. Step 2: Convert to fraction form
    39,568.68/54,602.64 = 21,660.12/x
  3. Step 3: Cross multiply
    39,568.68x = 54,602.64 × 21,660.12
  4. Step 4: Simplify right side
    39,568.68x = 1,182,699,734.72
  5. Step 5: Solve for x
    x = 1,182,699,734.72/39,568.68
  6. Step 6: Final answer
    x = 29,889.80

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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.