Home / 21,972.77-32,952.42-7,931.08

Finding the Fourth Proportional to 21,972.77, 32,952.42 and 7,931.08

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Solution

The fourth proportional to 21,972.77, 32,952.42 and 7,931.08 is: 11,894.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,972.77 : 32,952.42 = 7,931.08 : x
  2. Step 2: Convert to fraction form
    21,972.77/32,952.42 = 7,931.08/x
  3. Step 3: Cross multiply
    21,972.77x = 32,952.42 × 7,931.08
  4. Step 4: Simplify right side
    21,972.77x = 261,348,239.56
  5. Step 5: Solve for x
    x = 261,348,239.56/21,972.77
  6. Step 6: Final answer
    x = 11,894.19

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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.