Home / 20,560.16-28,373.40-12,068.36

Finding the Fourth Proportional to 20,560.16, 28,373.40 and 12,068.36

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Solution

The fourth proportional to 20,560.16, 28,373.40 and 12,068.36 is: 16,654.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560.16 : 28,373.40 = 12,068.36 : x
  2. Step 2: Convert to fraction form
    20,560.16/28,373.40 = 12,068.36/x
  3. Step 3: Cross multiply
    20,560.16x = 28,373.40 × 12,068.36
  4. Step 4: Simplify right side
    20,560.16x = 342,420,405.62
  5. Step 5: Solve for x
    x = 342,420,405.62/20,560.16
  6. Step 6: Final answer
    x = 16,654.56

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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.