Home / 21,167.60-31,752.84-10,776.56

Finding the Fourth Proportional to 21,167.60, 31,752.84 and 10,776.56

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Solution

The fourth proportional to 21,167.60, 31,752.84 and 10,776.56 is: 16,165.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167.60 : 31,752.84 = 10,776.56 : x
  2. Step 2: Convert to fraction form
    21,167.60/31,752.84 = 10,776.56/x
  3. Step 3: Cross multiply
    21,167.60x = 31,752.84 × 10,776.56
  4. Step 4: Simplify right side
    21,167.60x = 342,186,385.43
  5. Step 5: Solve for x
    x = 342,186,385.43/21,167.60
  6. Step 6: Final answer
    x = 16,165.57

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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.