Home / 21,298.93-29,392.73-11,739.16

Finding the Fourth Proportional to 21,298.93, 29,392.73 and 11,739.16

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Solution

The fourth proportional to 21,298.93, 29,392.73 and 11,739.16 is: 16,200.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,298.93 : 29,392.73 = 11,739.16 : x
  2. Step 2: Convert to fraction form
    21,298.93/29,392.73 = 11,739.16/x
  3. Step 3: Cross multiply
    21,298.93x = 29,392.73 × 11,739.16
  4. Step 4: Simplify right side
    21,298.93x = 345,045,938.35
  5. Step 5: Solve for x
    x = 345,045,938.35/21,298.93
  6. Step 6: Final answer
    x = 16,200.15

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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.