Home / 37,447.72-51,661.80-21,528.79

Finding the Fourth Proportional to 37,447.72, 51,661.80 and 21,528.79

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Solution

The fourth proportional to 37,447.72, 51,661.80 and 21,528.79 is: 29,700.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,447.72 : 51,661.80 = 21,528.79 : x
  2. Step 2: Convert to fraction form
    37,447.72/51,661.80 = 21,528.79/x
  3. Step 3: Cross multiply
    37,447.72x = 51,661.80 × 21,528.79
  4. Step 4: Simplify right side
    37,447.72x = 1,112,215,914.07
  5. Step 5: Solve for x
    x = 1,112,215,914.07/37,447.72
  6. Step 6: Final answer
    x = 29,700.50

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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.