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Finding the Fourth Proportional to 21,684.76, 32,536.98 and 21,335.32

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Solution

The fourth proportional to 21,684.76, 32,536.98 and 21,335.32 is: 32,012.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,684.76 : 32,536.98 = 21,335.32 : x
  2. Step 2: Convert to fraction form
    21,684.76/32,536.98 = 21,335.32/x
  3. Step 3: Cross multiply
    21,684.76x = 32,536.98 × 21,335.32
  4. Step 4: Simplify right side
    21,684.76x = 694,186,880.13
  5. Step 5: Solve for x
    x = 694,186,880.13/21,684.76
  6. Step 6: Final answer
    x = 32,012.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.