Home / 21,225.81-31,850.67-19,552.76

Finding the Fourth Proportional to 21,225.81, 31,850.67 and 19,552.76

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Solution

The fourth proportional to 21,225.81, 31,850.67 and 19,552.76 is: 29,340.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,225.81 : 31,850.67 = 19,552.76 : x
  2. Step 2: Convert to fraction form
    21,225.81/31,850.67 = 19,552.76/x
  3. Step 3: Cross multiply
    21,225.81x = 31,850.67 × 19,552.76
  4. Step 4: Simplify right side
    21,225.81x = 622,768,347.10
  5. Step 5: Solve for x
    x = 622,768,347.10/21,225.81
  6. Step 6: Final answer
    x = 29,340.15

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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.