Home / 21,256.98-31,886.78-6,467.00

Finding the Fourth Proportional to 21,256.98, 31,886.78 and 6,467.00

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Solution

The fourth proportional to 21,256.98, 31,886.78 and 6,467.00 is: 9,700.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,256.98 : 31,886.78 = 6,467.00 : x
  2. Step 2: Convert to fraction form
    21,256.98/31,886.78 = 6,467.00/x
  3. Step 3: Cross multiply
    21,256.98x = 31,886.78 × 6,467.00
  4. Step 4: Simplify right side
    21,256.98x = 206,211,614.49
  5. Step 5: Solve for x
    x = 206,211,614.49/21,256.98
  6. Step 6: Final answer
    x = 9,700.89

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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.