Home / 35,769.31-49,360.53-20,660.80

Finding the Fourth Proportional to 35,769.31, 49,360.53 and 20,660.80

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Solution

The fourth proportional to 35,769.31, 49,360.53 and 20,660.80 is: 28,511.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,769.31 : 49,360.53 = 20,660.80 : x
  2. Step 2: Convert to fraction form
    35,769.31/49,360.53 = 20,660.80/x
  3. Step 3: Cross multiply
    35,769.31x = 49,360.53 × 20,660.80
  4. Step 4: Simplify right side
    35,769.31x = 1,019,828,038.22
  5. Step 5: Solve for x
    x = 1,019,828,038.22/35,769.31
  6. Step 6: Final answer
    x = 28,511.26

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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.