Home / 21,207.53-31,798.23-7,166.23

Finding the Fourth Proportional to 21,207.53, 31,798.23 and 7,166.23

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Solution

The fourth proportional to 21,207.53, 31,798.23 and 7,166.23 is: 10,744.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,207.53 : 31,798.23 = 7,166.23 : x
  2. Step 2: Convert to fraction form
    21,207.53/31,798.23 = 7,166.23/x
  3. Step 3: Cross multiply
    21,207.53x = 31,798.23 × 7,166.23
  4. Step 4: Simplify right side
    21,207.53x = 227,873,432.99
  5. Step 5: Solve for x
    x = 227,873,432.99/21,207.53
  6. Step 6: Final answer
    x = 10,744.93

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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.