Home / 21,077.21-31,617.61-8,598.08

Finding the Fourth Proportional to 21,077.21, 31,617.61 and 8,598.08

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Solution

The fourth proportional to 21,077.21, 31,617.61 and 8,598.08 is: 12,897.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,077.21 : 31,617.61 = 8,598.08 : x
  2. Step 2: Convert to fraction form
    21,077.21/31,617.61 = 8,598.08/x
  3. Step 3: Cross multiply
    21,077.21x = 31,617.61 × 8,598.08
  4. Step 4: Simplify right side
    21,077.21x = 271,850,797.74
  5. Step 5: Solve for x
    x = 271,850,797.74/21,077.21
  6. Step 6: Final answer
    x = 12,897.85

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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.