Home / 20,130.59-27,775.19-12,065.52

Finding the Fourth Proportional to 20,130.59, 27,775.19 and 12,065.52

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Solution

The fourth proportional to 20,130.59, 27,775.19 and 12,065.52 is: 16,647.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130.59 : 27,775.19 = 12,065.52 : x
  2. Step 2: Convert to fraction form
    20,130.59/27,775.19 = 12,065.52/x
  3. Step 3: Cross multiply
    20,130.59x = 27,775.19 × 12,065.52
  4. Step 4: Simplify right side
    20,130.59x = 335,122,050.12
  5. Step 5: Solve for x
    x = 335,122,050.12/20,130.59
  6. Step 6: Final answer
    x = 16,647.41

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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.