Home / 21,095.55-31,631.31-8,600.94

Finding the Fourth Proportional to 21,095.55, 31,631.31 and 8,600.94

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Solution

The fourth proportional to 21,095.55, 31,631.31 and 8,600.94 is: 12,896.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,095.55 : 31,631.31 = 8,600.94 : x
  2. Step 2: Convert to fraction form
    21,095.55/31,631.31 = 8,600.94/x
  3. Step 3: Cross multiply
    21,095.55x = 31,631.31 × 8,600.94
  4. Step 4: Simplify right side
    21,095.55x = 272,058,999.43
  5. Step 5: Solve for x
    x = 272,058,999.43/21,095.55
  6. Step 6: Final answer
    x = 12,896.51

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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.