Home / 21,184.34-31,776.74-6,393.39

Finding the Fourth Proportional to 21,184.34, 31,776.74 and 6,393.39

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Solution

The fourth proportional to 21,184.34, 31,776.74 and 6,393.39 is: 9,590.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,184.34 : 31,776.74 = 6,393.39 : x
  2. Step 2: Convert to fraction form
    21,184.34/31,776.74 = 6,393.39/x
  3. Step 3: Cross multiply
    21,184.34x = 31,776.74 × 6,393.39
  4. Step 4: Simplify right side
    21,184.34x = 203,161,059.78
  5. Step 5: Solve for x
    x = 203,161,059.78/21,184.34
  6. Step 6: Final answer
    x = 9,590.16

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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.