Home / 21,204.16-31,807.38-8,057.68

Finding the Fourth Proportional to 21,204.16, 31,807.38 and 8,057.68

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Solution

The fourth proportional to 21,204.16, 31,807.38 and 8,057.68 is: 12,086.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,204.16 : 31,807.38 = 8,057.68 : x
  2. Step 2: Convert to fraction form
    21,204.16/31,807.38 = 8,057.68/x
  3. Step 3: Cross multiply
    21,204.16x = 31,807.38 × 8,057.68
  4. Step 4: Simplify right side
    21,204.16x = 256,293,689.68
  5. Step 5: Solve for x
    x = 256,293,689.68/21,204.16
  6. Step 6: Final answer
    x = 12,086.95

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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.