Home / 20,537.03-28,345.64-13,354.46

Finding the Fourth Proportional to 20,537.03, 28,345.64 and 13,354.46

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Solution

The fourth proportional to 20,537.03, 28,345.64 and 13,354.46 is: 18,432.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,537.03 : 28,345.64 = 13,354.46 : x
  2. Step 2: Convert to fraction form
    20,537.03/28,345.64 = 13,354.46/x
  3. Step 3: Cross multiply
    20,537.03x = 28,345.64 × 13,354.46
  4. Step 4: Simplify right side
    20,537.03x = 378,540,715.55
  5. Step 5: Solve for x
    x = 378,540,715.55/20,537.03
  6. Step 6: Final answer
    x = 18,432.11

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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.