Home / 37,140.81-51,256.98-21,230.25

Finding the Fourth Proportional to 37,140.81, 51,256.98 and 21,230.25

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Solution

The fourth proportional to 37,140.81, 51,256.98 and 21,230.25 is: 29,299.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,140.81 : 51,256.98 = 21,230.25 : x
  2. Step 2: Convert to fraction form
    37,140.81/51,256.98 = 21,230.25/x
  3. Step 3: Cross multiply
    37,140.81x = 51,256.98 × 21,230.25
  4. Step 4: Simplify right side
    37,140.81x = 1,088,198,499.65
  5. Step 5: Solve for x
    x = 1,088,198,499.65/37,140.81
  6. Step 6: Final answer
    x = 29,299.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.