Home / 20,900.08-28,838.48-11,946.16

Finding the Fourth Proportional to 20,900.08, 28,838.48 and 11,946.16

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Solution

The fourth proportional to 20,900.08, 28,838.48 and 11,946.16 is: 16,483.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,900.08 : 28,838.48 = 11,946.16 : x
  2. Step 2: Convert to fraction form
    20,900.08/28,838.48 = 11,946.16/x
  3. Step 3: Cross multiply
    20,900.08x = 28,838.48 × 11,946.16
  4. Step 4: Simplify right side
    20,900.08x = 344,509,096.24
  5. Step 5: Solve for x
    x = 344,509,096.24/20,900.08
  6. Step 6: Final answer
    x = 16,483.63

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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.