Home / 20,784.04-31,176.06-10,393.36

Finding the Fourth Proportional to 20,784.04, 31,176.06 and 10,393.36

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Solution

The fourth proportional to 20,784.04, 31,176.06 and 10,393.36 is: 15,590.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,784.04 : 31,176.06 = 10,393.36 : x
  2. Step 2: Convert to fraction form
    20,784.04/31,176.06 = 10,393.36/x
  3. Step 3: Cross multiply
    20,784.04x = 31,176.06 × 10,393.36
  4. Step 4: Simplify right side
    20,784.04x = 324,024,014.96
  5. Step 5: Solve for x
    x = 324,024,014.96/20,784.04
  6. Step 6: Final answer
    x = 15,590.04

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Similar ratio
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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.