Home / 21,502.20-29,674.50-11,943.18

Finding the Fourth Proportional to 21,502.20, 29,674.50 and 11,943.18

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Solution

The fourth proportional to 21,502.20, 29,674.50 and 11,943.18 is: 16,482.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,502.20 : 29,674.50 = 11,943.18 : x
  2. Step 2: Convert to fraction form
    21,502.20/29,674.50 = 11,943.18/x
  3. Step 3: Cross multiply
    21,502.20x = 29,674.50 × 11,943.18
  4. Step 4: Simplify right side
    21,502.20x = 354,407,894.91
  5. Step 5: Solve for x
    x = 354,407,894.91/21,502.20
  6. Step 6: Final answer
    x = 16,482.40

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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.