Home / 20,707.60-31,037.10-10,841.80

Finding the Fourth Proportional to 20,707.60, 31,037.10 and 10,841.80

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Solution

The fourth proportional to 20,707.60, 31,037.10 and 10,841.80 is: 16,249.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,707.60 : 31,037.10 = 10,841.80 : x
  2. Step 2: Convert to fraction form
    20,707.60/31,037.10 = 10,841.80/x
  3. Step 3: Cross multiply
    20,707.60x = 31,037.10 × 10,841.80
  4. Step 4: Simplify right side
    20,707.60x = 336,498,030.78
  5. Step 5: Solve for x
    x = 336,498,030.78/20,707.60
  6. Step 6: Final answer
    x = 16,249.98

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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.