Home / 21,240.64-31,817.76-10,704.16

Finding the Fourth Proportional to 21,240.64, 31,817.76 and 10,704.16

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Solution

The fourth proportional to 21,240.64, 31,817.76 and 10,704.16 is: 16,034.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,240.64 : 31,817.76 = 10,704.16 : x
  2. Step 2: Convert to fraction form
    21,240.64/31,817.76 = 10,704.16/x
  3. Step 3: Cross multiply
    21,240.64x = 31,817.76 × 10,704.16
  4. Step 4: Simplify right side
    21,240.64x = 340,582,393.88
  5. Step 5: Solve for x
    x = 340,582,393.88/21,240.64
  6. Step 6: Final answer
    x = 16,034.47

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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.