Home / 20,432.45-28,198.53-11,482.16

Finding the Fourth Proportional to 20,432.45, 28,198.53 and 11,482.16

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Solution

The fourth proportional to 20,432.45, 28,198.53 and 11,482.16 is: 15,846.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,432.45 : 28,198.53 = 11,482.16 : x
  2. Step 2: Convert to fraction form
    20,432.45/28,198.53 = 11,482.16/x
  3. Step 3: Cross multiply
    20,432.45x = 28,198.53 × 11,482.16
  4. Step 4: Simplify right side
    20,432.45x = 323,779,892.23
  5. Step 5: Solve for x
    x = 323,779,892.23/20,432.45
  6. Step 6: Final answer
    x = 15,846.35

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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.