Home / 21,260.16-31,895.10-6,471.18

Finding the Fourth Proportional to 21,260.16, 31,895.10 and 6,471.18

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Solution

The fourth proportional to 21,260.16, 31,895.10 and 6,471.18 is: 9,708.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260.16 : 31,895.10 = 6,471.18 : x
  2. Step 2: Convert to fraction form
    21,260.16/31,895.10 = 6,471.18/x
  3. Step 3: Cross multiply
    21,260.16x = 31,895.10 × 6,471.18
  4. Step 4: Simplify right side
    21,260.16x = 206,398,933.22
  5. Step 5: Solve for x
    x = 206,398,933.22/21,260.16
  6. Step 6: Final answer
    x = 9,708.25

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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.