Home / 21,065.52-31,604.19-9,220.33

Finding the Fourth Proportional to 21,065.52, 31,604.19 and 9,220.33

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Solution

The fourth proportional to 21,065.52, 31,604.19 and 9,220.33 is: 13,833.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,065.52 : 31,604.19 = 9,220.33 : x
  2. Step 2: Convert to fraction form
    21,065.52/31,604.19 = 9,220.33/x
  3. Step 3: Cross multiply
    21,065.52x = 31,604.19 × 9,220.33
  4. Step 4: Simplify right side
    21,065.52x = 291,401,061.18
  5. Step 5: Solve for x
    x = 291,401,061.18/21,065.52
  6. Step 6: Final answer
    x = 13,833.08

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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.