Home / 20,752.16-28,640.38-11,554.64

Finding the Fourth Proportional to 20,752.16, 28,640.38 and 11,554.64

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Solution

The fourth proportional to 20,752.16, 28,640.38 and 11,554.64 is: 15,946.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,752.16 : 28,640.38 = 11,554.64 : x
  2. Step 2: Convert to fraction form
    20,752.16/28,640.38 = 11,554.64/x
  3. Step 3: Cross multiply
    20,752.16x = 28,640.38 × 11,554.64
  4. Step 4: Simplify right side
    20,752.16x = 330,929,280.36
  5. Step 5: Solve for x
    x = 330,929,280.36/20,752.16
  6. Step 6: Final answer
    x = 15,946.74

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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.