Home / 21,118.32-31,677.36-6,327.24

Finding the Fourth Proportional to 21,118.32, 31,677.36 and 6,327.24

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Solution

The fourth proportional to 21,118.32, 31,677.36 and 6,327.24 is: 9,490.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,118.32 : 31,677.36 = 6,327.24 : x
  2. Step 2: Convert to fraction form
    21,118.32/31,677.36 = 6,327.24/x
  3. Step 3: Cross multiply
    21,118.32x = 31,677.36 × 6,327.24
  4. Step 4: Simplify right side
    21,118.32x = 200,430,259.29
  5. Step 5: Solve for x
    x = 200,430,259.29/21,118.32
  6. Step 6: Final answer
    x = 9,490.82

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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.