Home / 19,235.02-28,861.17-10,456.78

Finding the Fourth Proportional to 19,235.02, 28,861.17 and 10,456.78

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Solution

The fourth proportional to 19,235.02, 28,861.17 and 10,456.78 is: 15,689.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,235.02 : 28,861.17 = 10,456.78 : x
  2. Step 2: Convert to fraction form
    19,235.02/28,861.17 = 10,456.78/x
  3. Step 3: Cross multiply
    19,235.02x = 28,861.17 × 10,456.78
  4. Step 4: Simplify right side
    19,235.02x = 301,794,905.23
  5. Step 5: Solve for x
    x = 301,794,905.23/19,235.02
  6. Step 6: Final answer
    x = 15,689.87

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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.