Home / 21,637.63-32,436.86-8,486.47

Finding the Fourth Proportional to 21,637.63, 32,436.86 and 8,486.47

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Solution

The fourth proportional to 21,637.63, 32,436.86 and 8,486.47 is: 12,722.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,637.63 : 32,436.86 = 8,486.47 : x
  2. Step 2: Convert to fraction form
    21,637.63/32,436.86 = 8,486.47/x
  3. Step 3: Cross multiply
    21,637.63x = 32,436.86 × 8,486.47
  4. Step 4: Simplify right side
    21,637.63x = 275,274,437.40
  5. Step 5: Solve for x
    x = 275,274,437.40/21,637.63
  6. Step 6: Final answer
    x = 12,722.02

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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.