Home / 20,595.05-28,420.52-12,097.02

Finding the Fourth Proportional to 20,595.05, 28,420.52 and 12,097.02

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Solution

The fourth proportional to 20,595.05, 28,420.52 and 12,097.02 is: 16,693.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,595.05 : 28,420.52 = 12,097.02 : x
  2. Step 2: Convert to fraction form
    20,595.05/28,420.52 = 12,097.02/x
  3. Step 3: Cross multiply
    20,595.05x = 28,420.52 × 12,097.02
  4. Step 4: Simplify right side
    20,595.05x = 343,803,538.37
  5. Step 5: Solve for x
    x = 343,803,538.37/20,595.05
  6. Step 6: Final answer
    x = 16,693.51

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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.