Home / 20,929.52-31,391.58-17,441.30

Finding the Fourth Proportional to 20,929.52, 31,391.58 and 17,441.30

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Solution

The fourth proportional to 20,929.52, 31,391.58 and 17,441.30 is: 26,159.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,929.52 : 31,391.58 = 17,441.30 : x
  2. Step 2: Convert to fraction form
    20,929.52/31,391.58 = 17,441.30/x
  3. Step 3: Cross multiply
    20,929.52x = 31,391.58 × 17,441.30
  4. Step 4: Simplify right side
    20,929.52x = 547,509,964.25
  5. Step 5: Solve for x
    x = 547,509,964.25/20,929.52
  6. Step 6: Final answer
    x = 26,159.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.