Home / 20,953.32-31,367.56-13,536.12

Finding the Fourth Proportional to 20,953.32, 31,367.56 and 13,536.12

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Solution

The fourth proportional to 20,953.32, 31,367.56 and 13,536.12 is: 20,263.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,953.32 : 31,367.56 = 13,536.12 : x
  2. Step 2: Convert to fraction form
    20,953.32/31,367.56 = 13,536.12/x
  3. Step 3: Cross multiply
    20,953.32x = 31,367.56 × 13,536.12
  4. Step 4: Simplify right side
    20,953.32x = 424,595,056.27
  5. Step 5: Solve for x
    x = 424,595,056.27/20,953.32
  6. Step 6: Final answer
    x = 20,263.86

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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.