Home / 21,380.92-32,077.88-15,152.98

Finding the Fourth Proportional to 21,380.92, 32,077.88 and 15,152.98

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Solution

The fourth proportional to 21,380.92, 32,077.88 and 15,152.98 is: 22,734.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,380.92 : 32,077.88 = 15,152.98 : x
  2. Step 2: Convert to fraction form
    21,380.92/32,077.88 = 15,152.98/x
  3. Step 3: Cross multiply
    21,380.92x = 32,077.88 × 15,152.98
  4. Step 4: Simplify right side
    21,380.92x = 486,075,474.08
  5. Step 5: Solve for x
    x = 486,075,474.08/21,380.92
  6. Step 6: Final answer
    x = 22,734.08

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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.