Home / 20,426.88-30,645.12-6,575.36

Finding the Fourth Proportional to 20,426.88, 30,645.12 and 6,575.36

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Solution

The fourth proportional to 20,426.88, 30,645.12 and 6,575.36 is: 9,864.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,426.88 : 30,645.12 = 6,575.36 : x
  2. Step 2: Convert to fraction form
    20,426.88/30,645.12 = 6,575.36/x
  3. Step 3: Cross multiply
    20,426.88x = 30,645.12 × 6,575.36
  4. Step 4: Simplify right side
    20,426.88x = 201,502,696.24
  5. Step 5: Solve for x
    x = 201,502,696.24/20,426.88
  6. Step 6: Final answer
    x = 9,864.59

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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.