Home / 21,466.71-29,626.70-13,509.27

Finding the Fourth Proportional to 21,466.71, 29,626.70 and 13,509.27

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Solution

The fourth proportional to 21,466.71, 29,626.70 and 13,509.27 is: 18,644.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,466.71 : 29,626.70 = 13,509.27 : x
  2. Step 2: Convert to fraction form
    21,466.71/29,626.70 = 13,509.27/x
  3. Step 3: Cross multiply
    21,466.71x = 29,626.70 × 13,509.27
  4. Step 4: Simplify right side
    21,466.71x = 400,235,021.96
  5. Step 5: Solve for x
    x = 400,235,021.96/21,466.71
  6. Step 6: Final answer
    x = 18,644.45

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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.