Home / 37,037.07-51,111.75-20,905.21

Finding the Fourth Proportional to 37,037.07, 51,111.75 and 20,905.21

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Solution

The fourth proportional to 37,037.07, 51,111.75 and 20,905.21 is: 28,849.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,037.07 : 51,111.75 = 20,905.21 : x
  2. Step 2: Convert to fraction form
    37,037.07/51,111.75 = 20,905.21/x
  3. Step 3: Cross multiply
    37,037.07x = 51,111.75 × 20,905.21
  4. Step 4: Simplify right side
    37,037.07x = 1,068,502,006.26
  5. Step 5: Solve for x
    x = 1,068,502,006.26/37,037.07
  6. Step 6: Final answer
    x = 28,849.53

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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.