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Finding the Fourth Proportional to 36,969.40, 51,018.24 and 21,053.89

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Solution

The fourth proportional to 36,969.40, 51,018.24 and 21,053.89 is: 29,054.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,969.40 : 51,018.24 = 21,053.89 : x
  2. Step 2: Convert to fraction form
    36,969.40/51,018.24 = 21,053.89/x
  3. Step 3: Cross multiply
    36,969.40x = 51,018.24 × 21,053.89
  4. Step 4: Simplify right side
    36,969.40x = 1,074,132,412.95
  5. Step 5: Solve for x
    x = 1,074,132,412.95/36,969.40
  6. Step 6: Final answer
    x = 29,054.63

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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.