Home / 21,133.23-31,705.11-6,342.42

Finding the Fourth Proportional to 21,133.23, 31,705.11 and 6,342.42

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Solution

The fourth proportional to 21,133.23, 31,705.11 and 6,342.42 is: 9,515.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,133.23 : 31,705.11 = 6,342.42 : x
  2. Step 2: Convert to fraction form
    21,133.23/31,705.11 = 6,342.42/x
  3. Step 3: Cross multiply
    21,133.23x = 31,705.11 × 6,342.42
  4. Step 4: Simplify right side
    21,133.23x = 201,087,123.77
  5. Step 5: Solve for x
    x = 201,087,123.77/21,133.23
  6. Step 6: Final answer
    x = 9,515.21

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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.