Home / 57,828.95-86,733.77-20,380.22

Finding the Fourth Proportional to 57,828.95, 86,733.77 and 20,380.22

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Solution

The fourth proportional to 57,828.95, 86,733.77 and 20,380.22 is: 30,566.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,828.95 : 86,733.77 = 20,380.22 : x
  2. Step 2: Convert to fraction form
    57,828.95/86,733.77 = 20,380.22/x
  3. Step 3: Cross multiply
    57,828.95x = 86,733.77 × 20,380.22
  4. Step 4: Simplify right side
    57,828.95x = 1,767,652,778.46
  5. Step 5: Solve for x
    x = 1,767,652,778.46/57,828.95
  6. Step 6: Final answer
    x = 30,566.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.