Home / 20,559.88-28,373.54-11,607.45

Finding the Fourth Proportional to 20,559.88, 28,373.54 and 11,607.45

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Solution

The fourth proportional to 20,559.88, 28,373.54 and 11,607.45 is: 16,018.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.88 : 28,373.54 = 11,607.45 : x
  2. Step 2: Convert to fraction form
    20,559.88/28,373.54 = 11,607.45/x
  3. Step 3: Cross multiply
    20,559.88x = 28,373.54 × 11,607.45
  4. Step 4: Simplify right side
    20,559.88x = 329,344,507.33
  5. Step 5: Solve for x
    x = 329,344,507.33/20,559.88
  6. Step 6: Final answer
    x = 16,018.80

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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.