Home / 38,280.86-52,829.97-21,288.90

Finding the Fourth Proportional to 38,280.86, 52,829.97 and 21,288.90

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Solution

The fourth proportional to 38,280.86, 52,829.97 and 21,288.90 is: 29,380.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,280.86 : 52,829.97 = 21,288.90 : x
  2. Step 2: Convert to fraction form
    38,280.86/52,829.97 = 21,288.90/x
  3. Step 3: Cross multiply
    38,280.86x = 52,829.97 × 21,288.90
  4. Step 4: Simplify right side
    38,280.86x = 1,124,692,028.17
  5. Step 5: Solve for x
    x = 1,124,692,028.17/38,280.86
  6. Step 6: Final answer
    x = 29,380.01

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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.