Home / 20,713.64-31,070.78-11,537.96

Finding the Fourth Proportional to 20,713.64, 31,070.78 and 11,537.96

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Solution

The fourth proportional to 20,713.64, 31,070.78 and 11,537.96 is: 17,307.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713.64 : 31,070.78 = 11,537.96 : x
  2. Step 2: Convert to fraction form
    20,713.64/31,070.78 = 11,537.96/x
  3. Step 3: Cross multiply
    20,713.64x = 31,070.78 × 11,537.96
  4. Step 4: Simplify right side
    20,713.64x = 358,493,416.81
  5. Step 5: Solve for x
    x = 358,493,416.81/20,713.64
  6. Step 6: Final answer
    x = 17,307.12

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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.