Home / 21,985.64-32,981.54-7,195.72

Finding the Fourth Proportional to 21,985.64, 32,981.54 and 7,195.72

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Solution

The fourth proportional to 21,985.64, 32,981.54 and 7,195.72 is: 10,794.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,985.64 : 32,981.54 = 7,195.72 : x
  2. Step 2: Convert to fraction form
    21,985.64/32,981.54 = 7,195.72/x
  3. Step 3: Cross multiply
    21,985.64x = 32,981.54 × 7,195.72
  4. Step 4: Simplify right side
    21,985.64x = 237,325,927.01
  5. Step 5: Solve for x
    x = 237,325,927.01/21,985.64
  6. Step 6: Final answer
    x = 10,794.59

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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.