Home / 21,960.72-32,941.08-5,320.76

Finding the Fourth Proportional to 21,960.72, 32,941.08 and 5,320.76

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Solution

The fourth proportional to 21,960.72, 32,941.08 and 5,320.76 is: 7,981.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,960.72 : 32,941.08 = 5,320.76 : x
  2. Step 2: Convert to fraction form
    21,960.72/32,941.08 = 5,320.76/x
  3. Step 3: Cross multiply
    21,960.72x = 32,941.08 × 5,320.76
  4. Step 4: Simplify right side
    21,960.72x = 175,271,416.12
  5. Step 5: Solve for x
    x = 175,271,416.12/21,960.72
  6. Step 6: Final answer
    x = 7,981.13

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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.