Home / 20,534.50-28,337.61-11,103.07

Finding the Fourth Proportional to 20,534.50, 28,337.61 and 11,103.07

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Solution

The fourth proportional to 20,534.50, 28,337.61 and 11,103.07 is: 15,322.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,534.50 : 28,337.61 = 11,103.07 : x
  2. Step 2: Convert to fraction form
    20,534.50/28,337.61 = 11,103.07/x
  3. Step 3: Cross multiply
    20,534.50x = 28,337.61 × 11,103.07
  4. Step 4: Simplify right side
    20,534.50x = 314,634,467.46
  5. Step 5: Solve for x
    x = 314,634,467.46/20,534.50
  6. Step 6: Final answer
    x = 15,322.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.