Home / 21,034.18-29,024.53-11,959.35

Finding the Fourth Proportional to 21,034.18, 29,024.53 and 11,959.35

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Solution

The fourth proportional to 21,034.18, 29,024.53 and 11,959.35 is: 16,502.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,034.18 : 29,024.53 = 11,959.35 : x
  2. Step 2: Convert to fraction form
    21,034.18/29,024.53 = 11,959.35/x
  3. Step 3: Cross multiply
    21,034.18x = 29,024.53 × 11,959.35
  4. Step 4: Simplify right side
    21,034.18x = 347,114,374.12
  5. Step 5: Solve for x
    x = 347,114,374.12/21,034.18
  6. Step 6: Final answer
    x = 16,502.40

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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.