Home / 19,710.72-29,575.30-8,615.97

Finding the Fourth Proportional to 19,710.72, 29,575.30 and 8,615.97

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Solution

The fourth proportional to 19,710.72, 29,575.30 and 8,615.97 is: 12,927.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,710.72 : 29,575.30 = 8,615.97 : x
  2. Step 2: Convert to fraction form
    19,710.72/29,575.30 = 8,615.97/x
  3. Step 3: Cross multiply
    19,710.72x = 29,575.30 × 8,615.97
  4. Step 4: Simplify right side
    19,710.72x = 254,819,916.39
  5. Step 5: Solve for x
    x = 254,819,916.39/19,710.72
  6. Step 6: Final answer
    x = 12,927.99

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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.