Home / 21,130.22-31,695.59-5,549.42

Finding the Fourth Proportional to 21,130.22, 31,695.59 and 5,549.42

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Solution

The fourth proportional to 21,130.22, 31,695.59 and 5,549.42 is: 8,324.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,130.22 : 31,695.59 = 5,549.42 : x
  2. Step 2: Convert to fraction form
    21,130.22/31,695.59 = 5,549.42/x
  3. Step 3: Cross multiply
    21,130.22x = 31,695.59 × 5,549.42
  4. Step 4: Simplify right side
    21,130.22x = 175,892,141.06
  5. Step 5: Solve for x
    x = 175,892,141.06/21,130.22
  6. Step 6: Final answer
    x = 8,324.20

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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.