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Finding the Fourth Proportional to 21,804.30, 32,706.45 and 21,366.90

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Solution

The fourth proportional to 21,804.30, 32,706.45 and 21,366.90 is: 32,050.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,804.30 : 32,706.45 = 21,366.90 : x
  2. Step 2: Convert to fraction form
    21,804.30/32,706.45 = 21,366.90/x
  3. Step 3: Cross multiply
    21,804.30x = 32,706.45 × 21,366.90
  4. Step 4: Simplify right side
    21,804.30x = 698,835,446.51
  5. Step 5: Solve for x
    x = 698,835,446.51/21,804.30
  6. Step 6: Final answer
    x = 32,050.35

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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.