Home / 35,215.26-52,869.81-20,434.78

Finding the Fourth Proportional to 35,215.26, 52,869.81 and 20,434.78

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Solution

The fourth proportional to 35,215.26, 52,869.81 and 20,434.78 is: 30,679.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,215.26 : 52,869.81 = 20,434.78 : x
  2. Step 2: Convert to fraction form
    35,215.26/52,869.81 = 20,434.78/x
  3. Step 3: Cross multiply
    35,215.26x = 52,869.81 × 20,434.78
  4. Step 4: Simplify right side
    35,215.26x = 1,080,383,078.71
  5. Step 5: Solve for x
    x = 1,080,383,078.71/35,215.26
  6. Step 6: Final answer
    x = 30,679.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.