Home / 20,975.37-28,946.22-11,544.15

Finding the Fourth Proportional to 20,975.37, 28,946.22 and 11,544.15

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Solution

The fourth proportional to 20,975.37, 28,946.22 and 11,544.15 is: 15,931.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,975.37 : 28,946.22 = 11,544.15 : x
  2. Step 2: Convert to fraction form
    20,975.37/28,946.22 = 11,544.15/x
  3. Step 3: Cross multiply
    20,975.37x = 28,946.22 × 11,544.15
  4. Step 4: Simplify right side
    20,975.37x = 334,159,505.61
  5. Step 5: Solve for x
    x = 334,159,505.61/20,975.37
  6. Step 6: Final answer
    x = 15,931.04

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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.