Home / 21,972.95-32,956.80-5,742.98

Finding the Fourth Proportional to 21,972.95, 32,956.80 and 5,742.98

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Solution

The fourth proportional to 21,972.95, 32,956.80 and 5,742.98 is: 8,613.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,972.95 : 32,956.80 = 5,742.98 : x
  2. Step 2: Convert to fraction form
    21,972.95/32,956.80 = 5,742.98/x
  3. Step 3: Cross multiply
    21,972.95x = 32,956.80 × 5,742.98
  4. Step 4: Simplify right side
    21,972.95x = 189,270,089.25
  5. Step 5: Solve for x
    x = 189,270,089.25/21,972.95
  6. Step 6: Final answer
    x = 8,613.78

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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.