Home / 21,964.09-30,312.62-12,534.07

Finding the Fourth Proportional to 21,964.09, 30,312.62 and 12,534.07

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Solution

The fourth proportional to 21,964.09, 30,312.62 and 12,534.07 is: 17,298.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,964.09 : 30,312.62 = 12,534.07 : x
  2. Step 2: Convert to fraction form
    21,964.09/30,312.62 = 12,534.07/x
  3. Step 3: Cross multiply
    21,964.09x = 30,312.62 × 12,534.07
  4. Step 4: Simplify right side
    21,964.09x = 379,940,500.96
  5. Step 5: Solve for x
    x = 379,940,500.96/21,964.09
  6. Step 6: Final answer
    x = 17,298.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.