Home / 20,827.84-31,254.72-9,150.88

Finding the Fourth Proportional to 20,827.84, 31,254.72 and 9,150.88

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Solution

The fourth proportional to 20,827.84, 31,254.72 and 9,150.88 is: 13,732.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,827.84 : 31,254.72 = 9,150.88 : x
  2. Step 2: Convert to fraction form
    20,827.84/31,254.72 = 9,150.88/x
  3. Step 3: Cross multiply
    20,827.84x = 31,254.72 × 9,150.88
  4. Step 4: Simplify right side
    20,827.84x = 286,008,192.15
  5. Step 5: Solve for x
    x = 286,008,192.15/20,827.84
  6. Step 6: Final answer
    x = 13,732.01

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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.