Home / 21,017.98-29,004.96-11,586.52

Finding the Fourth Proportional to 21,017.98, 29,004.96 and 11,586.52

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Solution

The fourth proportional to 21,017.98, 29,004.96 and 11,586.52 is: 15,989.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,017.98 : 29,004.96 = 11,586.52 : x
  2. Step 2: Convert to fraction form
    21,017.98/29,004.96 = 11,586.52/x
  3. Step 3: Cross multiply
    21,017.98x = 29,004.96 × 11,586.52
  4. Step 4: Simplify right side
    21,017.98x = 336,066,549.14
  5. Step 5: Solve for x
    x = 336,066,549.14/21,017.98
  6. Step 6: Final answer
    x = 15,989.48

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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.