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Finding the Fourth Proportional to 21,482.44, 32,223.17 and 12,653.77

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Solution

The fourth proportional to 21,482.44, 32,223.17 and 12,653.77 is: 18,980.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,482.44 : 32,223.17 = 12,653.77 : x
  2. Step 2: Convert to fraction form
    21,482.44/32,223.17 = 12,653.77/x
  3. Step 3: Cross multiply
    21,482.44x = 32,223.17 × 12,653.77
  4. Step 4: Simplify right side
    21,482.44x = 407,744,518.58
  5. Step 5: Solve for x
    x = 407,744,518.58/21,482.44
  6. Step 6: Final answer
    x = 18,980.37

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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.