Home / 22,729.08-31,366.10-13,299.46

Finding the Fourth Proportional to 22,729.08, 31,366.10 and 13,299.46

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Solution

The fourth proportional to 22,729.08, 31,366.10 and 13,299.46 is: 18,353.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,729.08 : 31,366.10 = 13,299.46 : x
  2. Step 2: Convert to fraction form
    22,729.08/31,366.10 = 13,299.46/x
  3. Step 3: Cross multiply
    22,729.08x = 31,366.10 × 13,299.46
  4. Step 4: Simplify right side
    22,729.08x = 417,152,192.31
  5. Step 5: Solve for x
    x = 417,152,192.31/22,729.08
  6. Step 6: Final answer
    x = 18,353.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.