Home / 20,495.28-28,283.58-11,542.93

Finding the Fourth Proportional to 20,495.28, 28,283.58 and 11,542.93

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Solution

The fourth proportional to 20,495.28, 28,283.58 and 11,542.93 is: 15,929.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,495.28 : 28,283.58 = 11,542.93 : x
  2. Step 2: Convert to fraction form
    20,495.28/28,283.58 = 11,542.93/x
  3. Step 3: Cross multiply
    20,495.28x = 28,283.58 × 11,542.93
  4. Step 4: Simplify right side
    20,495.28x = 326,475,384.09
  5. Step 5: Solve for x
    x = 326,475,384.09/20,495.28
  6. Step 6: Final answer
    x = 15,929.30

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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.