Home / 21,306.68-31,960.01-6,515.59

Finding the Fourth Proportional to 21,306.68, 31,960.01 and 6,515.59

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Solution

The fourth proportional to 21,306.68, 31,960.01 and 6,515.59 is: 9,773.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,306.68 : 31,960.01 = 6,515.59 : x
  2. Step 2: Convert to fraction form
    21,306.68/31,960.01 = 6,515.59/x
  3. Step 3: Cross multiply
    21,306.68x = 31,960.01 × 6,515.59
  4. Step 4: Simplify right side
    21,306.68x = 208,238,328.93
  5. Step 5: Solve for x
    x = 208,238,328.93/21,306.68
  6. Step 6: Final answer
    x = 9,773.38

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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.