Home / 38,607.86-57,920.30-21,975.72

Finding the Fourth Proportional to 38,607.86, 57,920.30 and 21,975.72

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Solution

The fourth proportional to 38,607.86, 57,920.30 and 21,975.72 is: 32,968.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,607.86 : 57,920.30 = 21,975.72 : x
  2. Step 2: Convert to fraction form
    38,607.86/57,920.30 = 21,975.72/x
  3. Step 3: Cross multiply
    38,607.86x = 57,920.30 × 21,975.72
  4. Step 4: Simplify right side
    38,607.86x = 1,272,840,295.12
  5. Step 5: Solve for x
    x = 1,272,840,295.12/38,607.86
  6. Step 6: Final answer
    x = 32,968.42

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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.