Home / 20,538.03-28,342.53-11,106.59

Finding the Fourth Proportional to 20,538.03, 28,342.53 and 11,106.59

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Solution

The fourth proportional to 20,538.03, 28,342.53 and 11,106.59 is: 15,327.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,538.03 : 28,342.53 = 11,106.59 : x
  2. Step 2: Convert to fraction form
    20,538.03/28,342.53 = 11,106.59/x
  3. Step 3: Cross multiply
    20,538.03x = 28,342.53 × 11,106.59
  4. Step 4: Simplify right side
    20,538.03x = 314,788,860.27
  5. Step 5: Solve for x
    x = 314,788,860.27/20,538.03
  6. Step 6: Final answer
    x = 15,327.12

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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.