Home / 15,446.33-21,300.30-13,739.43

Finding the Fourth Proportional to 15,446.33, 21,300.30 and 13,739.43

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Solution

The fourth proportional to 15,446.33, 21,300.30 and 13,739.43 is: 18,946.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,446.33 : 21,300.30 = 13,739.43 : x
  2. Step 2: Convert to fraction form
    15,446.33/21,300.30 = 13,739.43/x
  3. Step 3: Cross multiply
    15,446.33x = 21,300.30 × 13,739.43
  4. Step 4: Simplify right side
    15,446.33x = 292,653,980.83
  5. Step 5: Solve for x
    x = 292,653,980.83/15,446.33
  6. Step 6: Final answer
    x = 18,946.51

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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.