Home / 21,621.75-32,432.21-7,577.88

Finding the Fourth Proportional to 21,621.75, 32,432.21 and 7,577.88

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Solution

The fourth proportional to 21,621.75, 32,432.21 and 7,577.88 is: 11,366.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,621.75 : 32,432.21 = 7,577.88 : x
  2. Step 2: Convert to fraction form
    21,621.75/32,432.21 = 7,577.88/x
  3. Step 3: Cross multiply
    21,621.75x = 32,432.21 × 7,577.88
  4. Step 4: Simplify right side
    21,621.75x = 245,767,395.51
  5. Step 5: Solve for x
    x = 245,767,395.51/21,621.75
  6. Step 6: Final answer
    x = 11,366.67

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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.