Home / 21,173.99-31,754.48-14,642.15

Finding the Fourth Proportional to 21,173.99, 31,754.48 and 14,642.15

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Solution

The fourth proportional to 21,173.99, 31,754.48 and 14,642.15 is: 21,958.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,173.99 : 31,754.48 = 14,642.15 : x
  2. Step 2: Convert to fraction form
    21,173.99/31,754.48 = 14,642.15/x
  3. Step 3: Cross multiply
    21,173.99x = 31,754.48 × 14,642.15
  4. Step 4: Simplify right side
    21,173.99x = 464,953,627.35
  5. Step 5: Solve for x
    x = 464,953,627.35/21,173.99
  6. Step 6: Final answer
    x = 21,958.72

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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.