Home / 21,073.09-31,609.32-6,282.07

Finding the Fourth Proportional to 21,073.09, 31,609.32 and 6,282.07

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Solution

The fourth proportional to 21,073.09, 31,609.32 and 6,282.07 is: 9,423.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,073.09 : 31,609.32 = 6,282.07 : x
  2. Step 2: Convert to fraction form
    21,073.09/31,609.32 = 6,282.07/x
  3. Step 3: Cross multiply
    21,073.09x = 31,609.32 × 6,282.07
  4. Step 4: Simplify right side
    21,073.09x = 198,571,960.89
  5. Step 5: Solve for x
    x = 198,571,960.89/21,073.09
  6. Step 6: Final answer
    x = 9,423.01

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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.