Home / 20,417.58-30,566.88-15,175.80

Finding the Fourth Proportional to 20,417.58, 30,566.88 and 15,175.80

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Solution

The fourth proportional to 20,417.58, 30,566.88 and 15,175.80 is: 22,719.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417.58 : 30,566.88 = 15,175.80 : x
  2. Step 2: Convert to fraction form
    20,417.58/30,566.88 = 15,175.80/x
  3. Step 3: Cross multiply
    20,417.58x = 30,566.88 × 15,175.80
  4. Step 4: Simplify right side
    20,417.58x = 463,876,857.50
  5. Step 5: Solve for x
    x = 463,876,857.50/20,417.58
  6. Step 6: Final answer
    x = 22,719.48

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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.