Home / 20,714.68-31,055.14-9,628.34

Finding the Fourth Proportional to 20,714.68, 31,055.14 and 9,628.34

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Solution

The fourth proportional to 20,714.68, 31,055.14 and 9,628.34 is: 14,434.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714.68 : 31,055.14 = 9,628.34 : x
  2. Step 2: Convert to fraction form
    20,714.68/31,055.14 = 9,628.34/x
  3. Step 3: Cross multiply
    20,714.68x = 31,055.14 × 9,628.34
  4. Step 4: Simplify right side
    20,714.68x = 299,009,500.23
  5. Step 5: Solve for x
    x = 299,009,500.23/20,714.68
  6. Step 6: Final answer
    x = 14,434.67

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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.