Home / 21,176.64-31,758.48-8,030.88

Finding the Fourth Proportional to 21,176.64, 31,758.48 and 8,030.88

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Solution

The fourth proportional to 21,176.64, 31,758.48 and 8,030.88 is: 12,043.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,176.64 : 31,758.48 = 8,030.88 : x
  2. Step 2: Convert to fraction form
    21,176.64/31,758.48 = 8,030.88/x
  3. Step 3: Cross multiply
    21,176.64x = 31,758.48 × 8,030.88
  4. Step 4: Simplify right side
    21,176.64x = 255,048,541.86
  5. Step 5: Solve for x
    x = 255,048,541.86/21,176.64
  6. Step 6: Final answer
    x = 12,043.86

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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.