Home / 21,341.34-29,449.98-11,908.08

Finding the Fourth Proportional to 21,341.34, 29,449.98 and 11,908.08

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Solution

The fourth proportional to 21,341.34, 29,449.98 and 11,908.08 is: 16,432.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,341.34 : 29,449.98 = 11,908.08 : x
  2. Step 2: Convert to fraction form
    21,341.34/29,449.98 = 11,908.08/x
  3. Step 3: Cross multiply
    21,341.34x = 29,449.98 × 11,908.08
  4. Step 4: Simplify right side
    21,341.34x = 350,692,717.84
  5. Step 5: Solve for x
    x = 350,692,717.84/21,341.34
  6. Step 6: Final answer
    x = 16,432.55

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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.