Home / 21,011.11-31,505.92-6,966.07

Finding the Fourth Proportional to 21,011.11, 31,505.92 and 6,966.07

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Solution

The fourth proportional to 21,011.11, 31,505.92 and 6,966.07 is: 10,445.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,011.11 : 31,505.92 = 6,966.07 : x
  2. Step 2: Convert to fraction form
    21,011.11/31,505.92 = 6,966.07/x
  3. Step 3: Cross multiply
    21,011.11x = 31,505.92 × 6,966.07
  4. Step 4: Simplify right side
    21,011.11x = 219,472,444.13
  5. Step 5: Solve for x
    x = 219,472,444.13/21,011.11
  6. Step 6: Final answer
    x = 10,445.54

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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.