Home / 37,439.68-51,669.48-21,529.12

Finding the Fourth Proportional to 37,439.68, 51,669.48 and 21,529.12

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Solution

The fourth proportional to 37,439.68, 51,669.48 and 21,529.12 is: 29,711.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,439.68 : 51,669.48 = 21,529.12 : x
  2. Step 2: Convert to fraction form
    37,439.68/51,669.48 = 21,529.12/x
  3. Step 3: Cross multiply
    37,439.68x = 51,669.48 × 21,529.12
  4. Step 4: Simplify right side
    37,439.68x = 1,112,398,435.26
  5. Step 5: Solve for x
    x = 1,112,398,435.26/37,439.68
  6. Step 6: Final answer
    x = 29,711.75

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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.