Home / 20,841.48-31,214.70-13,030.92

Finding the Fourth Proportional to 20,841.48, 31,214.70 and 13,030.92

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Solution

The fourth proportional to 20,841.48, 31,214.70 and 13,030.92 is: 19,516.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,841.48 : 31,214.70 = 13,030.92 : x
  2. Step 2: Convert to fraction form
    20,841.48/31,214.70 = 13,030.92/x
  3. Step 3: Cross multiply
    20,841.48x = 31,214.70 × 13,030.92
  4. Step 4: Simplify right side
    20,841.48x = 406,756,258.52
  5. Step 5: Solve for x
    x = 406,756,258.52/20,841.48
  6. Step 6: Final answer
    x = 19,516.67

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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.