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Finding the Fourth Proportional to 29,335.80, 40,536.96 and 21,364.08

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Solution

The fourth proportional to 29,335.80, 40,536.96 and 21,364.08 is: 29,521.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,335.80 : 40,536.96 = 21,364.08 : x
  2. Step 2: Convert to fraction form
    29,335.80/40,536.96 = 21,364.08/x
  3. Step 3: Cross multiply
    29,335.80x = 40,536.96 × 21,364.08
  4. Step 4: Simplify right side
    29,335.80x = 866,034,856.40
  5. Step 5: Solve for x
    x = 866,034,856.40/29,335.80
  6. Step 6: Final answer
    x = 29,521.43

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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.