Home / 20,656.92-28,504.23-11,702.51

Finding the Fourth Proportional to 20,656.92, 28,504.23 and 11,702.51

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Solution

The fourth proportional to 20,656.92, 28,504.23 and 11,702.51 is: 16,148.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,656.92 : 28,504.23 = 11,702.51 : x
  2. Step 2: Convert to fraction form
    20,656.92/28,504.23 = 11,702.51/x
  3. Step 3: Cross multiply
    20,656.92x = 28,504.23 × 11,702.51
  4. Step 4: Simplify right side
    20,656.92x = 333,570,894.10
  5. Step 5: Solve for x
    x = 333,570,894.10/20,656.92
  6. Step 6: Final answer
    x = 16,148.14

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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.