Home / 21,154.95-31,736.61-6,363.21

Finding the Fourth Proportional to 21,154.95, 31,736.61 and 6,363.21

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Solution

The fourth proportional to 21,154.95, 31,736.61 and 6,363.21 is: 9,546.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,154.95 : 31,736.61 = 6,363.21 : x
  2. Step 2: Convert to fraction form
    21,154.95/31,736.61 = 6,363.21/x
  3. Step 3: Cross multiply
    21,154.95x = 31,736.61 × 6,363.21
  4. Step 4: Simplify right side
    21,154.95x = 201,946,714.12
  5. Step 5: Solve for x
    x = 201,946,714.12/21,154.95
  6. Step 6: Final answer
    x = 9,546.07

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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.