Home / 37,272.09-51,435.12-21,142.36

Finding the Fourth Proportional to 37,272.09, 51,435.12 and 21,142.36

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Solution

The fourth proportional to 37,272.09, 51,435.12 and 21,142.36 is: 29,176.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,272.09 : 51,435.12 = 21,142.36 : x
  2. Step 2: Convert to fraction form
    37,272.09/51,435.12 = 21,142.36/x
  3. Step 3: Cross multiply
    37,272.09x = 51,435.12 × 21,142.36
  4. Step 4: Simplify right side
    37,272.09x = 1,087,459,695.10
  5. Step 5: Solve for x
    x = 1,087,459,695.10/37,272.09
  6. Step 6: Final answer
    x = 29,176.25

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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.